TFP au in which some Predacons survived the Great Cataclysm. They learned to transform and ended up assimilating into the general population of Cybertronians, even if they were always on the outer edge of society. Basically only considered good for hard labour and violence.
And of course in this au, bots can be born both through reproduction and the Well.
The Thirteenth emerged from the well as a Predacon, but one who was never as bestial as the other of his kind. Orion Pax was the first Predacon to be accepted amongst the normal cybertronians, but no one remembers that. Also no wings.
Megatron, also a Predacon, was found while still in his egg, along with his siblings. Their clutch had been abandoned for whatever reason, and so they became mining slaves. Life in the mines wasn't easy, and when D-16 left the mines and became Megatronus, he was the only one left.
Cue basically what happened in canon. Bit of an uproar that a Predacon became Prime, but then more important things happened, and nobody cared about that anymore.
Fast forward to the present day. The Orion Pax arc happens and during this time, Megatron's heat cycle strikes because I fucking love knocking up Megatron.
So once again, Orion Pax has left Megatron, but this time, he left a parting gift. Not that he knew about the clutch that Megatron ended up laying. There's only confusion as to just where the fuck Megatron is, why isn't he taking to the field? Because he's busy being broody and sitting on his eggs. Cue shenanigans, I guess.
Who else could be a Predacon? I don't know. Arcee? Seeker twins? Bulkhead?
Sorry for this word vomit orz
Now the situation as a whole with transformers living alongside Predacons would be insanely interesting
I exactly imagined Oppy's altmode as like one of those flightless dragons, (my brain just kept suggesting like Odogaron from the Monster Hunter series and ykw I'm gonna let my brain have this) while Meggsie's is a little more like Rathalos
Now I exactly suggest yes, all the options you named be Predacons because it's damn cool. Will it have in series consequences because they're well Predacons and not cybertronians with vehicle altmodes? Yes. But would it open up a whole window of opportunities for fun? Yes
