I've been waiting for this for sometime now and I'd love to participate in the future. But the time of the slot is skirting anything reasonable for me and I'd hazard a guess for a lot of other players too living in GMT +2 and GMT+3 (and there are a lot of those around). And this being on Sunday means that most people have work or school next morning.
Could this event be moved to Saturday perhaps or a bit earlier. I know there are other events there too, but worth a look for a slot? Hessians vs Corsairs is all but dead on Saturday at 21 GMT for example.
Or how about setting a double slot for around 20.00 GMT for one of the weekdays to supplement the "main" slot?