Pentax have hinted that there are four cameras in their roadmap. We have the first. The second is said to be a more premium 35mm compact camera, which could well be something like a full frame AF derived from the 17. Ricoh/Pentax might well look at how the Mint/Rollei camera does though, because those two models *could* end up competing against each other.
It probably isn't difficult to do a full frame 35mm AF P&S now that the groundwork has been done with the 17, so it could come out in time for Christmas 2024....but that decision will also be partially a marketing decision.
The 3rd camera might be an electronic SLR with some manual features. The final stop on the original roadmap is a fully mechanical/manual SLR....which is actually more difficult to build today than an electronic one. Though there are already some rumblings that the success of the 17 and general interest could, if it is kept up, lead to the roadmap being extended.
Though honestly, if they can release another camera in the next 12 months and some sort of SLR in a couple of years I'll still be delighted. That's a lot more serious film cameras on the market than we had 12 months ago.