Update #1
So. I didn't necessarily bite off more than I could chew (I still think this is definitely doable within two weeks), but the game jam did come at a reaally bad time. I didn't expect my summer classes to be as time-consuming as they are, so I've come up with a new plan that unfortunately falls outside of the scope of this jam. Basically, I'm going to have this game jam...but alone and also next week.
I think these threads are locked down once the jam's over? If not, I may still update here. I'm really disappointed, but unfortunately I gotta tend to my grades first.
Thank you to those who commented--I did end up at least starting the preliminary research for the game, and you guys really made me want to push through! Hopefully you can follow along with me after this jam is over.
Best of luck to everyone!