A .380 Mini-XD-S would be awesome, but requires a manufacturing base in the U.S., because these things cannot score enough points to permit importation. They may be able to make a little metal .380, to compete with Kimber Micro and SiG P238, using their 1911 production line. Just re-chamber EMP, cut its slide, install telescopic recoil spring, add a spacer into the magazine, done. But this is probably not the market going forward. Glock 42 put a world of hurt even on the P238, with all of its rainbow colors.
We can dream about Springfield standing up a polymer pistol plant in the U.S. and make all the current line of Chroat guns domestically, but the guy in the thread said that it's not that groundbreaking, so probably not.
P.S. Personally I'm inclined to think that it's probably an AR. The time is right for a re-introduction of that product line. And it's going to have a ton of components subcontracted, at least at first.
P.P.S. Another possibility is that they're putting a red dot on all handguns and call it "a line". Currently they have just one SKU.