Neither Motorola nor Verizon likes having the Bionic around as a testimony to the utter, absolute hash they made of its release. That said, for the few thousand of us who actually own the phone (I do, and I like it), tossing us a bone with ICS wouldn't result in any more bad press than has already been generated, and might actually go a ways toward creating a pool of happier customers for the Next Big Thing, whenever it emerges.
Once the upgrade from this clunky 2.3.4 Gingerbread to something more akin to the WebOS from which I came is complete, I anticipate staying with this phone until I see a few new generation-defining features emerge. By that I do not mean externals like thinner and lighter, or even better screens: I'm thinking more along the lines of a reduction in radio count by moving to voice over LTE, maybe a phaseout of CDMA in favor of GSM so that all phones will be carrier-neutral and world-enabled, that sort of thing.