Had a thought when reading this discussion, especially the bits about design goals.
4e is meant to last 4-5 rounds for a combat. But if there's an error in PC tactics or GM encoutner setup or just bad/weird dice rolling, it can turn into a slogfest. How do we fix this?
We force it to go 4-5 rounds. Lets establish 4 rounds as the baseline. Maybe there are some unstable creatures that will only go three rounds, or some hardliners that will go 5 or 6. But for most creatures, that's all they've got. After that, its either fight or flight.
One PC will roll an Intimidate check at the beginning of round 5. If he beats the average/leader's will defense, the bad guys run tail and run. If he does not, then they go into a berserk rage, believing this to be their blaze of glory. All standard monsters become Minions with 1 hit point, though they still roll damage normally. They lose all encounter and recharge powers and deal increased damage (I want to say doubled but I'd have to test it a bit).
Thoughts?