Makes me wonder...
L-cars: status undetermined, possibly as-is till 2025; 300 apparently staying till next gen or bust.
Minis: Pacifica variants, for at least a few years
JGC: completely new Giorgio based, two and three row
Durango: as is for at least a year, maybe longer
Wrangler/Gladiator: new, on long cycles
Renegade: just refreshed, new engine
Compass: nearly new, similar to Renegade, expecting new engines sooner or later
Cherokee: just refreshed but not that much, really; I expected totally new AWD system by now; some rumors it's moving to Giorgio or Small.
Rams are Rams. New metric-tonner probably to be supplied by Peugeot, outside of the US.
Journey is, I think, dead now, along with old Grand Caravan.
Most of the action seems to be at Jeep.
Engines:
Small, doing pretty well (1.3 turbo), more variants likely but maybe not in the US
Medium, doing pretty well (2.0 turbo)
2.4 and 1.4T: on borrowed time, for good reason
GME T6: still waiting, seems to have been put on hold indefinitely
V6: supposedly was to be replaced by 2.0T, seems to be continuing as is almost indefinitely
Apache (5.7): supposedly was to be replaced by 2.0T and GME T6, still going, rumored next gen disappeared from my view
6.2 and 6.4: I've heard nothing, both are still very competitive
426: AFAIK only M-I talked about this as a production, not Mopar, engine.
Side note:
GM has an electric crate engine coming up... not high-po except when compared to the ones it will replace... yet.
I'm going from memory, so expect mistakes.
As for Fiat and Alfa and Maserati, MJAB or T_690 have already given their predictions.