After taking a closer look at the land Extell owns, I can see some real possibility. The 400-skiable-acre draft proposal might make some sense if it's part of DV and just exists to sell real estate, but as a stand-alone ski area they could do more. Looks like around 3,000 vertical feet. The bottom half would be very snowmaking-dependent, as discussed, and even the upper sections could use snowmaking as insurance against weather. A summit higher than any of Deer Valley except the top of Empire. What could be the best learner's zone in the Wasatch up above (and potentially connecting to) Ontario & Homeward Bound at DV. Beginner terrain lower down the mountain, too, to provide options depending on weather. Nice steepish high-elevation terrain comparable to Sultan & Mayflower lifts at DV. South-exposed steeps that can be "conditions permitting" expert terrain, kind of like the Canyons side at PCMR. All in all, it seems like it could be built into a decent mid-size mountain and a great choice for families looking for a more affordable option in the Wasatch. Not the best Utah has to offer, by and large... but better, bigger, more consistent skiing than anywhere in the US east of the Rockies and capable of competing with mid-market destinations in the West (Purgatory, Nordic Valley if it expands, Sierra-at-Tahoe, Tamarack, Angel Fire, etc.).
Re: the military angle, 100 subsidized rooms with decent subsidized skiing or a 15-minute bus ride to PCMR where a military season pass is less than a day ticket at DV... doesn't sound too bad. I shared lift rides with several young sailors and marines enjoying their first-ever ski season at Mountain High and Snow Summit in Southern California... Mayflower Mountain has the potential to offer them a better, more reliable ski experience that feels like even more of a "getaway," at a price point that many service members could manage.