My guess... we don't see any new v8's other than from GM, and those are probably the last as well (other than in HD truck market which is a different thing altogether).
This hemi coming back is a very temporary thing due to the change in US politics, but we can all see the writing on the wall. EV mandates aren't going away (for better or worse, I'm not arguing that side of it, just that gassers ARE on their last legs).
I love my gas truck, but I'm not married to it anymore either. It's my first V8, and I love it, but its more than likely my last V8 unless my needs change or my truck doesn't last another 7 years. Once the Ram REV is here its game over as far as I'm concerned.
So for Ram, my bet is:
- they push the hemi as long as it works/makes sense
- they continue advancing the hurricane if/when needed
- series hybrids become the focus for the 2 to 15 year game plan, like the REV/ram charger
- somewhere in the future they release an EV when hemi no longer works in the rules they have to play by.
Rumour is that FCA was working on a new 5.0 or 5.5 V8 before the hemi program was canned a few years ago. It's possible they bring that program back, I'd be pleasantly surprised but first that program would actually have to have existed and second they'd have to bring it back and I just don't see that being too likely. The hemi can make anywhere from 400 to 1025 hp, a new V8 isn't going to advance the HP/performance side of things, and the hurricane is their current high tech/powered engine that already overlaps the performance of the hemi and gets better MPG and emissions for when that matters.