Well, a massive crossover reminds me of a post I made back in 2009 amalgamating what are now IDW crossovers. I forgot to include M.A.S.K., however, which is weird because it would have been a no-brainer.
I did tie in the Marvel superheroes, which crossed over with IDW Transformers way back when.
Enjoy:
http://www.cybertron.ca/boards/showthread.php?t=17768
Anyways, It makes sense for IDW to try to shoehorn in as much Hasbro stuff as possible, it could either branch out into comic series where IDW already has a good relationship with the IP holder, or just plant some McGuffins for future use.
Still, it seems like the quick and short-lived execution might not have been the best way. I agree that starting off a fresh reality with the plan from the get-go would probably have been better.
edit:
for some reason the post I linked to is missing some of the stuff I remember, like "Oscorponok" with Norman Osborn in place of Zarak, and the O on the sign falling off the factory as it started to cause havok, and Asgardians in place of Nebulans. Might have to check my hard drive at some point.
Anyways, I linked to it because the comments in the thread about crossing various franchises together might still be valid regarding Revolution.