I had a one-man planning session a couple minutes ago, 
and I've got a schedule I plan to follow (I can't speak for the rest of my team, though). 

1. Create the basic structure of the game engine
   
   •  Event Managing (class-based) -- 30 min. ~ 2 hrs.
   •  Object Handling (Worlds and GameObjects) -- 2 ~ 4 hrs.
   •  Animation and image handling (Sprites) -- 30 min. (Only if necessary)
   •  Patch Management -- 2 ~ 3 hrs. (Only if strictly necessary [like, say, a large project])
   
   
2. Start working on hte rest of it (I'll figure it out when i get there)

Regarding the Mutate! theme, I'd like to do something that's original. In the discussions I've been seeing a lot of talk about viruses and mutating creatures, but what if this mutation was a person? Even better, what if this person has the powers to mutate? Introducing...the Mutation Man (read: hero)!

With a Kirby-esque superpower, Mutation Man can pick up powers by eating or touching (haven't decided which) objects or even people. For instance, he can swallow up people to regain health, swallow people when he's at full health to buff himself up, swallow garbage cans to do a stink ray attack, etc.

The Storyline: Mutation Man has a girlfriend, Jean. One day, Jean is kidnapped by a terrorist group when she was working on the top floor of a really high tower. Mutation Man realizes Jean is in trouble, and decides to go superman on the baddies! It'll be a platformer/action game, with levels being different floors.

Due to the limitations of PyWeek, though, I'm keeping my hopes low and thinking about 3 floors? 4? ...that's pretty low for a skyscraper... -___________________________-

I will keep you posted on whatever else my tired brain comes up with.