Boon's twitter seems to be ablaze the last few days with hints, teases, trolls and pics. The most recent picture tease shows the legs of two opponents fighting:

The camo patterned pants, muscular legs and familiar boots (number 5, above the earlier teased Jacks) make me quite sure that Jax is indeed coming back for MKX.

The other pair of legs belongs to Sub-Zero I believe so nothing too interesting there.

What do you guys think? Did I hit the jax-pot or am I a Briggs fat liar? Update: Yeah, it is just Kano. I was just re-watching his announcement video and saw that a few people corrected my mistake. Dammit.