With such a user base you would expect regular software updates, it's one of the reasons why the success. That model should carry through regardless of the the parent company. It would be foolish to do otherwise this early. Motorola has quite a status in its own right, that's something it was purchased for, it would make little sense to strip it of what has made it iconic. The same goes for its' version of Android.
Google wins too through patent licencing into some markets where it hasn't faired as well as it expected to. Lenova gets Google in-the-door. Motorola gets backing for more R&D, manufacturing, etc. Us consumers should get the benefits of that, so the campaign worked and we should hold them to that.
It's a great handset after all. As said before, the camera could be better, but it could be improved by better software. The white balance is woeful, lol. Some presets would be nice or some manual control. Skin tones aren't top notch and can be improved since it's for an international market, but that could be done through software.
The specifications are good, one of the few penta-band phones out there, that can go anywhere.
IMO, if they keep the less-is-more idea, in terms of android, they'll do even better. Now if you could tell that to Google...