Seriously, 12 turns over 2 days sounds like..... More trouble than it's worth. Unless you think you have a realistic shot at sieging someone's capital in that time, you should be able to push out 12 turns in an hour.
It's giving me an idea for a "non-rush-semi-blitz" game.
The basic idea is to get as many turns as possible in on the first evening - with direct attacks on other players prohibited for that first session. So once initial expansion is done, everyone gets some time to finalize fort building, focus their research, and plan out their army composition for really bloody mid game wars. Since massing mages would be a little easier, put the research on Hard, but increase site frequency to 60 or so, to help compensate for the lack of trading in the early game (due to the pace).
Not sure how many people would be up for this sort of a scenario. I'm looking at it not as an artificial peace, but more like the first session defines what would actually be starting empires. So you're doing something of a SP building of your nation, and then the first daily turn after that is really the actual first turn of another game altogether.
