"What I'm trying to say is, if there is nowhere else to go....will the community stick with what they know?"

I don't think so. There was a future-oriented aspect that no longer seems pertinent. Developers will want to feel like they're catching the next wave, or at least staying current. I'm not a developer; and I haven't progressed beyond the N8x0 series. Maemo got as far as step X-1 of a promised X steps to a polished consumer device. I was waiting for such a device. It apparently won't be from Nokia, and I won't be here much or at all anymore. Most others will move on, too.