But it doesn't mean that the G1/G2/BW/BM continuity is necessarily forever closed. I would love to see a series that shows us the end of the Great Autobot-Decepticon War or perhaps even further back in time - who wouldn't love to see a kind of The War Within but in-continuity with G1/G2/BW/BM? Okay, admittedly that wouldn't really link to a good toyline that could be marketed at kids (because the alt modes would all be pre-Earth Cybertron modes) but I reckon the former could work.

Transformers: Generation 3.