I don’t have any inside knowledge, but I think your assumption is safe (it wouldn’t be a quiet addition). The freezing of tracks is tied to so much, it would be a massive effort / feature / marketing bullet point.
Especially now with the “versioning” feature in 7.5 (which looks AWESOME, btw).
I’m curious to see how this “versioning” of tracks is affected by freeze state. I hope it’s still possible to “switch” to different versions when they’re frozen.
If it is possible, it would make Cubase the ultimate platform for projects where several “remixes” are the norm (and where frozen tracks are the order of the day).
That feature, alone, is worth the price of admission for the update (imho). Huge.
And the “visibility” feature of tracks, with the option to link it to the console and back … !!!