Being a huge fan of the Christopher Nolan Batman series, I think a gimmick similar to that of Bane's would be brilliant in the WWE Universe. Ironically, because we've seen the character portrayal on the big screen I think it would be a bit of a ripoff for WWE TV now. #TNA...StingAsTheJoker!
However, if you go back to 08' when TDK was made & Nolan decided not to do a third then "YES!" (Extend arms upwards and point fingers to the ceiling.)
Having been well documented for a no. of years, McMahon loves a 250+ big man muscle for his Main Event Matchcards. To an extent, there's nothing wrong with that but the problem has been they've sometimes all been from the same ilk. Goldberg was the original 'tear through walls-undefeated streak' powerhouse machine. Since then we've had Lesnar, Batista, Lashley, Ezekiel Jackson, Ryback, Mason Ryan, Big E Langston to name a few. (Note. Lesnars come of his own after UFC days. Ref. to Original WWE Lesnar 02-04).
If you add the brains to the brawn, then you create a Bane-like character who has the ability to beat his opponent mentality as well as physically. I like the mix of the two as it creates depth to a character when it comes to storytelling. The Undertaker is a perfect example of that.
A rough idea to introduce such a character would be to first have a normal run of the mill superstar who's got a decent look, good mic skills and can go in the ring. After several months of midcard match success, he's thrust into the ring with a Big Show, Mark Henry, Ryback character who literally destroys him. I'm talking OMG moment. After a few months of no appearances and no idea of his whereabouts, he re-emerges as a visibly bigger superstar who begins a crusade in WWE to begin a Revolution. With a Ultimate Heel Push in booking, he would form Alliances & build Army's across the roster, Eventually looking to 'take control' of the company - much like the Ministry of Darkness storyline without the higher power crap. In the end however, "The Machine" would catch up with him and low and behold, SuperCena and the Cenation would give an Attitude Adjustment.