Canon wouldn't provide firmware upgrades the way they did for the 7D and the 1D-X, if they weren't dedicated to deliver to their customer base, irrespective of competition, because I don't see any competition for the 7D.
The f8 issue, although quite important for me, isn't everyone's cup of tea, especially since f8 autofocus has previously been available in 1-series cameras anyway, so I think this fix still applies to 1-series only.
Fixing the black and now flashing red focus point issue is important for both 1D-X and 5D Mark III users, so you can expect something like this coming up in a 5D Mark III firmware update as well.
Maybe the solution for the 5D Mark III focus points will even be better than the one provided for the 1D-X, because Canon can react to the initial 1D-X user experiences. In any case I don't see any reason to whine about 5D Mark III users not receiving an update. I expect it is only a matter of time, so get your hopes up!