NFL: What will be the next trend or big thing in the NFL?

[mdrake34]

Will it be offensive or defensive? Over the last decade, we've seen the rise (and somewhat fall) of the popularity of the 3-4 defense, we've seen the rise of the athletic, deep threat TE, we've seen the emergence of "hybrid" defenders, we've seen, though it's been totally unimpressive, Tim Tebow, and we briefly saw the wildkat.

What will be the next trend? With continued rule changes that favor passing and high scoring games, will there be some kind of new running game that will emerge? Will a new type of defensive scheme become popular? What are the odds it will NOT come from Mularkey?

What do you guys think?