Kind of a random question, but after version 2.0, I assume there won't be more updates, right?
Dr.Muramasa already confirmed there will be a 6 months gap after the Steam release for Kal to focus on Roundscape. If Starmaker is the next project it will be a spinoff in the same universe but with different characters... I think the thing to expect whatever is the next project it will be tide in to using the same technologies as the next mainline project (like how Eclipse uses Unity like Starmaker) so this may limit it's scope for what type of game it is.
Personally I would like a Starmaker Manager game, and it is a RPG Dating Management Sim where you can run multiple Starmaker Accounts, but there is an overarching story.. Bit like Family Business (by FamilyDev)