At the moment we do not have enough people to have a 2nd or a 3rd Castle open for european / asian WoE. But it is not merely made for europeans / asians and excluding americans, nor is american WoE excluding european / asian players. So, there is a big number of people who are covering to participate on both WoE's.
I am a european, as you are, and you cannot deny, apart from wednesday WoE, most people have almost no problem to participate on WoE. (4 of 5: Euro WoE, american WoE, WoE 2.0)
But yeah, I dont live in an asian timezone, so I'd like to hear some opinions from a regular student schedule.