Here's a suggestion. I like to play games with short time limits so I don't waste all day waiting for opponents to take turns. But turns in the endgame sometimes take a long time when you're killing multiple players and trading cards, etc. It'd be nice for these games to have it so it's a time limit, but if you kill a player you get more time as if you started a new turn. That way, you could still have quick games but you would be able to make the right move in the endgame without running out of time.

That would be a really nice feature!

Nice Idea -- ..and it really doesn't have to apply to multi-player games.   So start with a 1 minute bonus for taking out an opponent, but on top of that, something like a 30 second bonus for every 5 territories taken. That's should be more than enough if you're using the T button to clean up a large board.