waiting for win10 to be good enough?
That's likely to be a long wait. The whole win10 everywhere idea is misguided. With the (half hearted) attempts to make win10 more desktop friendly it's heading in the wrong direction for small screens. With the repeat of "burning platform" hinted at winphone as a real mobile os isn't likely to be resurrected.
Microsoft would need to ship phablets to make win10 a sensible mobile os. Not going to happen while Surface exists, Ballmer might have accepted cannibalising ms product lines, saner minds are in charge now. Not much saner though. Ballmer would have spent more years pushing a failed product, todays ms are more ruthless and pragmatic. If wp looks neglected there's nothing accidental about that.