If the idea is, "Make a tabletop rpg now, and then do some kind of online implementation of it later, step by step," this seems not a bad approach, and not a bad idea.
Your challenge at this first stage will perhaps be defining a scope so as to encourage people to create games that will be easy to then bring online / into a VTT.
I am also wondering about the answer to this question. What are the parameters of the jam? What falls within the purview of this jam and what's outside it?
