Well if they ever make any I am so into it, They can start with the combaticons since we already got Swindle, But I cant see it unless Animated Gen 2 ever happens lol...
As has been said we already have Jetfire and Jetstorm -> Safeguard. Hasbro kinda hinted at the Constructicons being held off so they could allow for them to combine, but as of now that's likely a lost cause, even if we get Devs on the show.
If the line lasts long enough I'm sure there will be combiner teams, probably starting with Devastator.
^ I don't know if you were specifically thinking about the more than two members combiners, but, like the other people said, we already have Animated combiners.
Yeah, there's Safeguard/ Jet twins, but if you want to include custom Animated combiners, Spurt Teynolds did a kick-ass Dinobot combiner with all Animated Dinobots (he used Snarl three times)
lol that optimistic at this tage of the game if we get an Animated Devastator we will be extremely lucky but getting combiner 'teams' beyond that ludicrous.