It seems to me that to  make a turn-based game, there are basically three options: hot seat multiplayer, online multiplayer, and user vs. AI opponents. The 8-bits to Infinity FAQ has long recommended against making multiplayer games because of the "extra difficulty giving feedback" so are most people planning to make a "user vs. AI opponents" game? Is that your expectation and recommendation, Joshua?

You could also theoretically have simultaneous local multiplayer where the turns are locked before the game runs through them. And along the lines of the Final Fantasy "active time battle" system, you could do a number of interesting things in a local or networked multiplayer environment.

Since there's an entire month to work and turn-based design lends to simpler (and more forgiving) networking requirements, I think it's perfectly reasonable to attempt a networked experience for this jam - and even local multiplayer would be even simpler.

The catch is a multiplayer focus would require an AI that slots in for a real person for anyone who can't test with multiple players. There's also an inherent jump in design complexity when there are two (or more) "playing" sides. It's also much more difficult for streamers and judges to organize a multiplayer session, so the judgment and feedback would be largely based on this AI rather than the intended person vs person experience.

So tl;dr - this is the ideal scenario for a multiplayer game, but always be aware of the different challenge it presents.