Hi EmperorFluf,
1) I am a dutch player from .NL so my language is not 100% good.
2) Their are maybe differences on casuals and the process it is evolving for each server.
3) I am not playing this long on .net so correct me if i am wrong.
Since there is no one yet to answer your question. I am going to try and give you an answer.
Cas7 started 98 days ago. (3 month and a week)
The range on cas5 is falling at 19 december. 70 days from now.
My guess is that cas8 will be open in 50 - 80 days. (When cas7 is around 150-160days old.)
It is a wide range. I know. But the 70 days are in between. So at least you have to defend your villages for more than 10 days to be sure.
As the setting says: "Transfer to newest casual world will be enabled."
You only can move over to a new casual after the 19th.
So if cas8 opens before the 19th, you are lucky. I see it as a 60-66% chance. But you can be unlucky. Than it is on you to defend your villages a little longer.
Btw. The world isn't over on the 19th.
On how the tribes are devided now, i think the domination will be sett on 60%-65%
(At least as if the domination is calculated on the NL method.)
@JawJaw have you any idea?