Universe 3.0 potentially. But the movie will end before Animated. So Universe and Animated can run concurrently
Really hard to say, though I personally think Animated will have another season or two, Universe will probably have one more section after RotF's toy line is mostly over, and then we'll have the third movie's toy line to look forward to (not guaranteed we'll be getting a third one, but we more than likely will, if not more afterwords). Would be interesting to see Animated continue under a different name, and have it jump a certain number of years into the future.
I really hope that Transformers Animated will last a long time. Because when it stops I doubt I'll collect anything else that is Transformers related.
Who knows? It is really to early to say. Like what Ravenxl7 said, Animated will probably continue under a different name. It is most likely Universe will also continue under a different name. I am hoping for another run of Alternators, but it is very unlikely.
i kind of hope Universe will continue off and on for at least the next five years. No clue what the next mainline will be after animated and the third movie. I'd be disappointed if we were able to predict it.
Hasbro is currently planning to run Animated for as long as there's interest in it. And with at least one other TF movie coming out, I'd say it's a safe bet that Animated, Movie, and Universe will be the three main lines for the next few years.
Something like, Animated, the Cybertron chronicles. Possibly a bridge between the G1 war and the present.
Unless Revenge of the Fallen is a bust that disinterests even kids and any followup sequel falls through or is a bust too, then general awareness in interest Transformers should continue...which should/could mean Animated could run for awhile. Why should Hasbro (and everyone else associated) give up on a huge cash cow??? The movie line should run through at least a likely third film, and possibly could branch off into a separate or sister line, as G1 and other characters who don't make it into the films get movie-style figures (we already have non-movie characters out for the Movie line anyways). Animated should last another two to three years, at the minimum, barring a plummet in interest in Transformers in general. Classics will probably go on for awhile in some form for some time.