Everything I've seen posted says the 7.0L will not be coming to the HDs, at least not initially. They're supposed to continue to have the 6.4L BGE unless something has changed recently.
I agree with you that the 7.0l is not coming initially, if ever.
But people are migrating away from the Diesel in large numbers. The Diesel will always be a need for people who haul over 15000 lbs and or long miles over higher elevation and steep grades.
But as someone who has owned a 2013 Cummins and still have my amazing V10 Magnum. I can tell you a larger V8 gasser is coming sometime. Maybe the 426 Banshee will shine in the TR and us HD guys will get a 440 warthog. 7.2l...hmm maybe make a 7.7l, that would be cool.
My 8.0l V10 could have been so much more with a better transmission. 488 cubic inches and no aftermarket, thanks to that Darn Cummins. But as I have gotten older and wiser, I have no want to tow over 65 mph, heck 60 makes me crazy...and the 6.4l Hemi will do that just fine
Still debating getting a 2018 Cummins withthe G56, though. I do like stick shifts and clutch pedals...but an 8speed auto in the HD...I would completely forget that thought.