The best definition of Dubstep I've read says: "Dubstep sounds like transformers having sex".
Although Michael Bay has made very difficult for me to enjoy the franchise (and I don't rule out that Bay makes use of Dubstep as stated before in TF4), Dubstep is a great electronic music genre that is heavily based on the drop. As defined by wikipedia, the drop is "the point in a track where a switch of rhythm or bass line occurs and usually follows a recognizable build section and break." I may add that usually this happens after a build up in sound and harmonies.
Right now, WM/H is in that build up with the "Central Big Piece" format (War Engines, Colossals) and the Regular/Epic/Legendary Characters. But what's next? Epic Colossals? Godly Characters? this escalation (pun intended) cannot sustain itself for much longer until we end up playing something closer than GW's Epic, than what WM/H was when MKII was released.
In my series of short stories "Warmachine: Decimation" (two posts somewhere in this forum, hopefully more to come) I took into this idea thinking about a time after the current game meta-story wartime. It is based into more personal storylines (one of the main reasons I enjoy the IK meta-story) in a smaller scale, where the great organization (States, Kingdoms, Empires) lie decimated after the huge war effort.
I do believe that PP has taken this into consideration, and I also know that this goes against the "more, more, more" desire of most of the player base; but as I've always said: I'm just proposing alternate development routes for a game I love and support.