Ugh. I hate Walker.
Bring on Marina though. She's stupid popular too so I think she has a good chance.
All I can say is my game definitely downloaded some extra data yesterday morning. NOT off Google Play, just a little one when the app started and a progress bar came up.
As for extra villagers, I looked back at update notes on a wiki and so far they have been released on a regular basis. If they follow the same pattern, expect more this Thursday.
I've been playing since launch. I wasnt particularly efficient at first but now I have all but the latest 4 villagers at level 16. Tomorrow the first ones should turn 17. I think the pacing is perfect. I like the new additions, but there has to be room to max out the first 40, and do their special requests (which is what Im currently working on and am half way through).