For one, I'm not sure. Might they have settled for what we do know atm (basically a cut of the action). Not impossible but that seems unlikely to me given Disney's tough stance over their IP's and that they are hardly in need of the money.
What might they have got? I don't know. None of us do so we can only speculate. Things Marvel could have got range from Star Wars ANH distribution, a reversion of other character rights held by Fox, amendments to the t&c's in the existing contracts....It's anyone's guess really, and could be something none of us have thought of, or it might be nothing at all.
Bottom line is Marvel were in a position to get more than just a cut of the money from those shows. Going into those negotiations they did have the leverage to get more. If they did settle for just a stake, like I said before I'd be surprised.