No.
Longer Answer: Not really. Routes (especially international routes) are chosen through an algorithm that factors multiple things. The path chosen for you, through the US, was "optimal" at the time you ran the trace. They don't consider or factor end-user preferences. There's no way to "flag" your data (at the frame/packet level) in a way so that the routers recognize it and alter the path your data takes.*
Just for fun, I connected to a portal in Australia and ran three traces. From Sydney, Melbourne, and Perth.
From Sydney:
gi9-9.sglebdist01.nw.aapt.net.au (202.10.15.152) [MPLS: Label 460 Exp 0] 0 msec
gi9-9.sglebdist02.nw.aapt.net.au (202.10.15.154) [MPLS: Label 48 Exp 0] 4 msec
gi9-9.sglebdist01.nw.aapt.net.au (202.10.15.152) [MPLS: Label 460 Exp 0] 0 msec
2 po7.sglebbrdr01.aapt.net.au (202.10.14.9) 0 msec
po6.sglebbrdr01.aapt.net.au (202.10.14.7) 0 msec
po7.sglebbrdr01.aapt.net.au (202.10.14.9) 0 msec
3 xe7-0-0-420.sebr2.global-gateway.net.nz (202.50.238.213) 52 msec 0 msec 4 msec
4 202.68.67.153 [AS 2914] 0 msec 0 msec 4 msec
5 xe-5-1-0.r05.sydnau01.au.bb.gin.ntt.net (202.68.64.162) [AS 2914] 0 msec 0 msec 0 msec
6 as-3.r23.tokyjp01.jp.bb.gin.ntt.net (129.250.3.237) [AS 2914] [MPLS: Label 750272 Exp 0] 228 msec 196 msec 196 msec
7 ae-0.r20.sngpsi02.sg.bb.gin.ntt.net (129.250.2.101) [AS 2914] [MPLS: Label 552032 Exp 0] 268 msec 264 msec 260 msec
8 as-0.r02.sngpsi02.sg.bb.gin.ntt.net (129.250.4.36) [AS 2914] 256 msec 252 msec 256 msec
From Melbourne:
1 gi9-11.mburndist01.nw.aapt.net.au (202.10.15.156) [MPLS: Label 512 Exp 0] 8 msec
gi9-11.mburndist02.nw.aapt.net.au (202.10.15.158) [MPLS: Label 383 Exp 0] 12 msec
gi9-11.mburndist01.nw.aapt.net.au (202.10.15.156) [MPLS: Label 512 Exp 0] 12 msec
2 te0-3-1-0.mflincore01.aapt.net.au (202.10.12.17) [MPLS: Labels 17448/460 Exp 0] 8 msec
te2-1-110.mburndist02.aapt.net.au (202.10.12.139) [MPLS: Labels 855/460 Exp 0] 12 msec
te0-3-1-0.mflincore01.aapt.net.au (202.10.12.17) [MPLS: Labels 17448/460 Exp 0] 12 msec
3 te0-3-1-0.mflincore01.aapt.net.au (202.10.12.17) [MPLS: Labels 17464/460 Exp 0] 8 msec
te0-0-4-0.sglebcore01.aapt.net.au (202.10.10.72) [MPLS: Labels 17017/460 Exp 0] 12 msec
te0-3-1-0.mflincore01.aapt.net.au (202.10.12.17) [MPLS: Labels 17464/460 Exp 0] 8 msec
4 te2-2.sglebdist01.aapt.net.au (202.10.12.6) [MPLS: Label 460 Exp 0] 8 msec
te0-0-4-0.sglebcore01.aapt.net.au (202.10.10.72) [MPLS: Labels 17028/460 Exp 0] 12 msec
te2-2.sglebdist01.aapt.net.au (202.10.12.6) [MPLS: Label 460 Exp 0] 8 msec
5 te2-2.sglebdist01.aapt.net.au (202.10.12.6) [MPLS: Label 460 Exp 0] 12 msec
po6.sglebbrdr01.aapt.net.au (202.10.14.7) 8 msec
te2-2.sglebdist01.aapt.net.au (202.10.12.6) [MPLS: Label 460 Exp 0] 12 msec
6 xe7-0-0-420.sebr2.global-gateway.net.nz (202.50.238.213) 12 msec
po6.sglebbrdr01.aapt.net.au (202.10.14.7) 12 msec
xe7-0-0-420.sebr2.global-gateway.net.nz (202.50.238.213) 12 msec
7 xe7-0-0-420.sebr2.global-gateway.net.nz (202.50.238.213) 12 msec
202.68.67.153 [AS 2914] 12 msec
xe7-0-0-420.sebr2.global-gateway.net.nz (202.50.238.213) 16 msec
8 xe-5-1-0.r05.sydnau01.au.bb.gin.ntt.net (202.68.64.162) [AS 2914] 12 msec
202.68.67.153 [AS 2914] 28 msec
xe-5-1-0.r05.sydnau01.au.bb.gin.ntt.net (202.68.64.162) [AS 2914] 12 msec
9 xe-5-1-0.r05.sydnau01.au.bb.gin.ntt.net (202.68.64.162) [AS 2914] 8 msec
as-3.r23.tokyjp01.jp.bb.gin.ntt.net (129.250.3.237) [AS 2914] [MPLS: Label 750272 Exp 0] 204 msec
xe-5-1-0.r05.sydnau01.au.bb.gin.ntt.net (202.68.64.162) [AS 2914] 20 msec
10 ae-0.r20.sngpsi02.sg.bb.gin.ntt.net (129.250.2.101) [AS 2914] [MPLS: Label 552032 Exp 0] 288 msec
as-3.r23.tokyjp01.jp.bb.gin.ntt.net (129.250.3.237) [AS 2914] [MPLS: Label 750272 Exp 0] 204 msec
ae-0.r20.sngpsi02.sg.bb.gin.ntt.net (129.250.2.101) [AS 2914] [MPLS: Label 552032 Exp 0] 276 msec
11 ae-0.r20.sngpsi02.sg.bb.gin.ntt.net (129.250.2.101) [AS 2914] [MPLS: Label 552032 Exp 0] 272 msec
as-0.r02.sngpsi02.sg.bb.gin.ntt.net (129.250.4.36) [AS 2914] 276 msec
ae-0.r20.sngpsi02.sg.bb.gin.ntt.net (129.250.2.101) [AS 2914] [MPLS: Label 552032 Exp 0] 308 msec
12 ?
as-0.r02.sngpsi02.sg.bb.gin.ntt.net (129.250.4.36) [AS 2914] 284 msec
From Perth:
1 gi9-9.pstmadist01.nw.aapt.net.au (202.10.15.176) [MPLS: Label 517 Exp 0] 52 msec
gi9-9.pstmadist02.nw.aapt.net.au (202.10.15.178) [MPLS: Label 361 Exp 0] 48 msec
gi9-9.pstmadist01.nw.aapt.net.au (202.10.15.176) [MPLS: Label 517 Exp 0] 52 msec
2 te2-1-110.pstmadist01.aapt.net.au (202.10.12.152) [MPLS: Labels 1204/48 Exp 0] 56 msec
te2-1-110.pstmadist02.aapt.net.au (202.10.12.153) [MPLS: Labels 1064/460 Exp 0] 48 msec
te2-1-110.pstmadist01.aapt.net.au (202.10.12.152) [MPLS: Labels 1204/48 Exp 0] 56 msec
3 te0-3-1-0.pgroscore01.aapt.net.au (202.10.12.33) [MPLS: Labels 1047509/460 Exp 0] 52 msec
te0-3-4-0.pstmacore01.aapt.net.au (202.10.12.31) [MPLS: Labels 1047554/48 Exp 0] 60 msec
te0-3-1-0.pgroscore01.aapt.net.au (202.10.12.33) [MPLS: Labels 1047509/460 Exp 0] 48 msec
4 te0-0-1-0.mburncore01.aapt.net.au (202.10.10.86) [MPLS: Labels 17179/48 Exp 0] 56 msec
gi0-0-0-1.mflincore01.aapt.net.au (202.10.10.84) [MPLS: Labels 17588/460 Exp 0] 48 msec
te0-0-1-0.mburncore01.aapt.net.au (202.10.10.86) [MPLS: Labels 17179/48 Exp 0] 56 msec
5 te0-0-4-0.sglebcore01.aapt.net.au (202.10.10.72) [MPLS: Labels 17654/460 Exp 0] 52 msec
te0-0-4-0.sclarcore01.aapt.net.au (202.10.10.74) [MPLS: Labels 17314/48 Exp 0] 56 msec
te0-0-4-0.sglebcore01.aapt.net.au (202.10.10.72) [MPLS: Labels 17654/460 Exp 0] 52 msec
6 te2-2.sglebdist02.aapt.net.au (202.10.12.8) [MPLS: Label 48 Exp 0] 56 msec
te2-2.sglebdist01.aapt.net.au (202.10.12.6) [MPLS: Label 460 Exp 0] 52 msec
te2-2.sglebdist02.aapt.net.au (202.10.12.8) [MPLS: Label 48 Exp 0] 56 msec
7 po6.sglebbrdr01.aapt.net.au (202.10.14.7) 52 msec
po7.sglebbrdr01.aapt.net.au (202.10.14.9) 56 msec
po6.sglebbrdr01.aapt.net.au (202.10.14.7) 48 msec
8 xe7-0-0-420.sebr2.global-gateway.net.nz (202.50.238.213) 56 msec 60 msec 64 msec
9 202.68.67.153 [AS 2914] 52 msec 56 msec 52 msec
10 xe-5-1-0.r05.sydnau01.au.bb.gin.ntt.net (202.68.64.162) [AS 2914] 56 msec 56 msec 56 msec
11 as-3.r23.tokyjp01.jp.bb.gin.ntt.net (129.250.3.237) [AS 2914] [MPLS: Label 750272 Exp 0] 248 msec 240 msec 252 msec
12 ae-0.r20.sngpsi02.sg.bb.gin.ntt.net (129.250.2.101) [AS 2914] [MPLS: Label 552032 Exp 0] 316 msec 308 msec 312 msec
13 as-0.r02.sngpsi02.sg.bb.gin.ntt.net (129.250.4.36) [AS 2914] 308 msec 316 msec 308 msec
Based on those three traces, it does look like Australia has a direct link to Japan/NTT that offers an almost 100 ms faster path to that specific server (especially if you're in Sydney). You might consider calling your ISP to ask them to check their (BGP) routing to see if the routes are properly calibrated/balanced. Depending on how flexibile your ISP is (and with whom they peer), they may be able to set up more specific routes for you and other gamers to take a shorter path. But that depends on their network peers, peer agreements, route aggregation, etc, etc. And whether they feel like it.
But there's nothing you can personally do, to alter the path taken by your game data. (WoT = Great game!)