Actually, Roland came out with the V/VA series in the interim between the G1000 and G70. Including the VA76, which was, at the time, basically Roland's replacement for the G1000. The fact that it didn't catch on didn't stop it from being Roland's direct replacement.
But, of course, Donny and Ian knew THAT!

Personally, I hope Roland DON'T come out with a G70 replacement any time soon. This, at least to me, seems a terrible time to introduce a very expensive keyboard, especially one without an innovative approach to what is turning out to be a changing market. Let their 'competition' go broke trying to cater to a dwindling customer base, with dwindling resources (wait six months before you argue this point!) with unproven 'cutting edge' products at inflated, pre-recession prices.
In the meantime, as I keep saying, my G70 continues to wow others in the studio and live bands, AND as a solo/duo accompaniment device. And, I'm sorry, but so far, no-one else has yet managed to come out with anything I have to say 'I GOTS to have one of those!'...
Only a gearhead changes for no good reason. Me, I've got to find something truly BETTER before I'll even consider it.