Generations G2 Dreadwing toy coming?

[GoktimusPrime]

Most of the repaints you mentioned were of various incarnations of the BW Megatron

Not really. I've gone back and colour coded that list.
Green = incarnation of BW Megatron (1/21)
Purple = incarnation of G1 Megatron as a BW Megs repaint (1/21)
Red = entirely different characters that are repaints/retools of BW Megatron (7/21)
Blue = None of the above (12/21)
As you can see, most in that list are actually not incarnations of BW Megatron (only 1 is) or repaints/retools of BW Megatron (only 8 are, 1 of which is G1 Megs). The majority are unrelated to BW Megatron either by mould or character.

but then I spose many other Megatron's have been recoloured as Galvatron, especially in the Unicron Wars cartoons.

Eeh, I wouldn't count that since Galvatron's the same character as Megatron. The Galvatron repaints aren't much better/worse than all the other various repaints of Megatrons we get, like the black repaints, shiny chrome repaints etc etc etc.

If G1 Meg's ran into him he'd be all 'Damn Bludgeon - WTF you tryin ta pull man?!' and then blow his slaggin head off!

Again!