I think the current team stacking measures have gone a bit too far. For me it is a lot more fun to play archer or engineer while defending than attacking. Now i only have a 50/50 shot of getting what i want and that just sucks.
I have even seen some people join ,leave and rejoin until they join the team they wanted to be in. In the end this change is just too drastic and generally is badly recieved by the playerbase as well.
I know team stacking can be a pain but honestly this is not the correct way to prevent it. Maybe just give people that autofill a small gold bonus or something.
Regardless eastern invasion has been an excellent update and I am looking forward to the next update.
( Weather effects in invasion maps when? The new brawl map looks absolutely wonderful )
With team stacking, it's still a work in progress; we're hoping to improve this in the future.
As for weather, Cortile was a testbed for this kind of stuff, so yeah it's planned to expand it to other maps in the future.