What's the state/direction of RQ after the release of MKIV?

I know there’s a few RQ/MK3 models that made the cut to MKIV but generally where’s the game going? Are new releases planned? If so, will they be MKIV compatible?

I know it’s a busy time for PP and they cannot focus on every game all the time, just wondering if they’ve talked about it at all. I haven’t heard it mentioned in any of their recent Prime casts.