Long before the present engagements, I lived/worked in Heidelberg, Germany (home of Headquarters, US Army Europe & Seventh Army) as a civilian employee. (That was September 1976 - May 1980.)
I would suggest that, if this USO Tour idea goes forward, European duty stations be considered as "practice sites" as well as Korea and Japan. I believe a lot of the Logistics work for the combat areas happens in Europe first. (Well, it did when I was there and working for the Deputy Chief of Staff, Logistics, hehehehe.)
I have guildies stationed "in the sandbox" who manage to do a little EQ/EQ2 when the connections are good. I also have a friend who is a dependent spouse living on the economy outside Ramstein AFB and using the local German internet system to connect and play.
But if this USO Tour gets off the ground, I can imagine buddies kibbitzing over the shoulders of those who get to log and and learn/play. Lots of goodwill for Sony, lots of fun for our troops, who face lots of un-fun on a daily basis.
Of course, if this project gets the green light before Fan Faire, it would be a heckuva fine announcement for Smedley's State of the SOE address....