I have a list of all G1 characters that have been released in CHUG form. You can find it here. Please feel free to let me know if I got anything wrong so I can fix it.
And it has occurred to me that Buzzsaw might not get any sort of SS86 release the way Frenzy & Rumble have, because he didn't make an appearance of any sort in the movie.
Sure, Studio Series has moved the goalposts a couple of times, but given how Buzzsaw, whom we all expected to get a new toy of back in Siege (5 years ago now) is only now getting that toy, I suspect that if that happened (SS widened further to include the cartoon in general) then it would still be 5 years on from now...
I'm hoping that Ravage and Laserbeak get new SS86 toys, like Rumble and Frenzy have to replace the Siege toys after this use.
If they do maybe a Buzzsaw repaint in the Generations Line might pop up sooner.