Gen 4 is clearly coming, and is probably just a few months away. No surprise there.
Increasing the level cap is something I thought they would do a while ago - the number of level 40 players in my area is pretty high, and it makes sense to give them more challenges, including some very high XP requirements to get to the higher levels. I suspect that above level 40, Pokemon will get even less of a bonus as they go up levels, but we'll see.
Both good things, but I'm not holding my breath.