A number of European WAR fans are currently considering the option of playing Warhammer: Age of Reckoning on US servers instead of on GOA European servers. But playing on US servers has serious downsides. I have no actual measurements for WAR, but for other games about 50 ms ping to Europeans servers, and over 200 ms ping to US servers.

The other big downside is time zones, WAR is a social game. You *want* to be online when everyone else is online, be it for public quests or for PvP. Europeans live 6 to 9 time zones ahead of the US, so unless you play day and night anyway, you're not going to be online much during US prime time. Your US guild plans a big keep raid event, but they'll schedule it for the time when they are all online, which is 3 am in the morning for you. Been there, done that, it's not a good idea.

WAR will run on launch day in Europe, many people hope it to be successful even if the open beta didn't.