To be honest, as nice as it is to see gingerbread running as a proof of concept, I am not sure anyone will bother completing the port.
Don't take this as an attack on the devs, who have done a miraculous job of keeping the Hero relevant in a world of 3.7"+ screens and 1GHz processors. The Hero is just getting too long in the tooth now, and the hardware was very quickly outdated. Most of the people who bought one when it came out will be nearing the end of their contracts (mine is up next March) and I can't see it surviving as long as the G1 did simply because the hardware didn't rely on locked down proprietary drivers like the Hero does.
It was quickly ignored by HTC and superseded by devices of the Nexus spec, and I can't see it being able to cope much longer. It would be a really nice swan song for it to get 2.3 though, nice way to draw a line under it development. I hope someone proves me wrong and there are still talented devs with Hero's as daily devices, but as far as I can tell most of them (if not all) have moved on to bigger and better devices, and who can blame them?
EDIT: I will look at using the framework-res to create a theme for our hero's so we can at least pretend we have Gingerbread