IMHO it's too soon to drop TOH entirely, especially since it's been mostly an afterthought/side-project from the beginning.
But I guess it depends on how much new blood, sweat, & tears they've put into it (or haven't), that we don't know about.
If they've invested heaps of time/resources into it since the J1's release, then I can't see them wanting to ditch all of that.
It also depends on similar platforms coming soon*, & if their envisaged improvements result in something more compelling or competitive.
Whatever choice they make, it'll probably be coming from a place that's better informed than any of us can realistically be.

*Ara, PuzzlePhone, few others