I suppose that is a possibility. I remember reading articles (long ago) that said the Ranger PHEV was going to be 360 HP and 500 lb-ft of torque. But that was before we learned the Ranger PHEV was ROW only and they got a seriously de-tuned version of the 2.3 Ecoboost.   The F-150 Powerboost has a 47 HP electric motor in the modular 10R80 hybrid transmission where the Ranger PHEV has a 100 HP electric motor in the modular 10R80 hybrid transmission. A Ranger Powerboost might have ~317 HP (270 + 47) which is nearly the same as the 2.7 (315 HP).

F100 has always been F150 with lighter suspension/axles and in some cases frame, so that would check out

This just looks like a f-150 mock up to me. 

I wonder if the 2.3 PowerBoost could outright replace the 2.7?     Oh yeah, I remember now....I think most of us glossed over it, figuring it was something related to F-150.

If Lego built a real car...

Yea, but what the average customer does care about is the ability for a company they are considering doing business with to deliver what it promises. That’s why the big shots at Ford must be relentless in their efforts to get CE1/UEV products to market on time (or earlier), in high volume, with high quality. No excuses

It appears to have the dropdown window line (next to side view mirrors) like the F-150. Not surprising the F-100 would also have these.

https://fordauthority.com/2025/11/ford-scrubs-images-of-clay-models-at-new-hq-from-media-site/     I'm thinking the vehicle to the left is an early styling clay model of this rumored vehicle. 

My guess for North American F-100 power trains is the same as current Ranger:  - 2.3 Ecoboost - 2.7 Ecoboost  - 3.0 Ecoboost (F-100 Raptor)   Plus these possible new additions: - 2.3 Powerboost hybrid (likely) - 2.3 PHEV/EREV (less likely) - 2.0 Ecoboost maybe for fleet/base

More marketing than actual cost savings.  Allows them to charge more for the 2.3L.