The discussion of late has strayed from one of the original items on the wish list: That the "hybrid" moniker might refer to a combo viewfinder, one that might provide focus peaking via an LCD overlay. Don't know if this will come to be, but what would be the point of providing backward-compatibility with all the old AI and non-AI lenses if the viewfinder didn't provide functional support for the legacy glass?
Many of us have scooped up some old lenses, only to find focus is "not quite" way too often. I've bought and sold more MF lenses than I can count, always thinking that I might be able to work with a modern, compromised DSLR viewfinder.
For me, if there isn't something exceptional in the finder's design that supports MF, that's the dealbreaker. I love the retro design, but the execution has to match the intent.
And if Nikon does build the camera that embraces the F-mount legacy, hat's off to them. They don't make money on our eBay buys, but what they earn is continued commitment from us, the owners of cherished old glass, if only we could nail focus.