It might be possible. I have other things that I have to do that I haven't been doing because I was messing around with JOGL and LWJGL.
If I can get enough work done today, I should be able to work on something tomorrow night. My plan for the jam was to experiment with a combat system. I may be able to do just that without having much other content.
It may not be the best use of my time, but it's worth a try. I really have to start finishing stuff.