Two OLED phones with basically the same design as the X, 5.8-inch and 6.4-inch sizes. They will at least get them both under $1000 ($899 and $999), so that they can get away with no new LCD models, just a price drop to the 8 and 8 Plus ($599 and $699). Usual improvements to processor, cameras, etc. ProMotion has to make its way to the iPhone at some point, so that wouldn't be surprising. I don't think that the return of Touch ID is likely. If Face ID goes well enough for them, they'll focus their efforts on things like ProMotion rather than resurrecting Touch ID under the display.