Whoops, going to repost here (just seeing this thread...)
Hooray! Hoping they that the camera and sat upgrades are priced reasonably. But this is a really nice gesture. The spirit of this really is nice and melts away my earlier annoyances at how they introduced the 650. It was always clearly an upgrade, and they were in a pickle with promises to keep the 12C upgraded, but it was disingenuous and insulting to 12C owners for them to try to claim it wasn't an upgrade. I prefer they just be honest and say they put themselves in a pickle with that promise. And that's what I'm interpreting this as, they're coming clean.
They are splitting the baby here in a nice way. Doing the right thing in giving upgrades where they can, while still doing what they need to, in upgrading the car in more significant ways (e.g., suspension hardware upgrades, engine/cylinder upgrades that really cannot easily be moved to the 12C).
I'll be an ingrate and hope they they include some ABS tweaks, some suspension differentiation tweaks (I get that they can't make it as good as the 650, but I bet they can still enhance this), some traction tweaks (again, they could put in some refinements that make the 12C a touch easier to drift via software as to when the nanny kicks in, probably not to the same extent as the 650, but improvements can be made), and a little HP tweak (maybe 5-10hp/lb of torque can be milked from the software?). While I'm at it I'll also ask for a pony, a mansion and a yacht.
Agree with others, that I expect/hope there will still be some maintenance tweaks for the 12C in the future, at least for IRIS and such, at least for a few more years.
Anyway, kudos to them! From my perspective, this really puts most of the grumbles on the handling of 12C owners vis-a-vis the 650/introduction to bed.