Not sure if these things have been defined yet, so maybe we can ask questions here (since we have a new group running it)?...

Can someone switch clans and compete for their new clan? Not change accounts (from a 'main' to an alt), but actually move their designated main?

Switching clans is players' wish and I don't think the organizers can stop someone from switching clans.
The terms for competing after the switch maybe changed. Under current terms, 1 can play for 2 clans in 1 season(due to transfer window).

Edited 9/21/2018 16:10:15

Yes he can. But he won't be able to play for the previous clan in CL 12, in case he wants to switch back to it after CL 11.

Edit: Actually i have to correct myself and quote the CL 10 rules.

If a player is present on Clan X’s roster in a given season, and decides to leave clan X to play for another Clan Y. This player cannot play for Clan X again for another 2 seasons. The only exception to this rule is if Clan X drops out of the Clan League.

This rule accounts for all rosters from CL8 onwards, so if a player represented Clan X in CL8 and Clan Y in CL9, they cannot play for Clan X again until CL 12. Seasons before CL8 are not considered.

Edited 9/21/2018 16:52:26

You can't play for the old clan for two seasons. That's it.

Oh, that is fine then. Yeah, it isn't for me, just a friend. I'll never leave WG :)