I really miss the unhappiness / cultural switch system from GalCiv / Civ4. It's always nice to piss off your own people enough that they start revolting, or to lose enough battles that they begin to grow tired of your pathetic regime and decide to switch to your enemy.

I mean, I know Frogboy said this wasn't going to be in, but I think it allows a peaceful resolution to conflicts, and speeds up a player's defeat when it starts to become inevitable. This is always useful so that players can't prolong conflicts.

At the very least, cultural switching could be introduced in. When your range of influence washes over an enemy player's cities (I've surrounded enemy cities with mine, so they're trapped in their own little bubbles within my sea) then those cities can choose to convert to you, perhaps with appropriate damage to the city itself (revolution and all).

What does everyone else think?