mkx will be dominated by two extremes rushdown and spammer, think mk9 kung lao and pepatch deathstroke in the same game. in fact, the injustice evo final is pretty much a preview of mkx except with a run mechanic.
even though it seems they are attempting to equip each style with an offense,defense, and, i guess, balanced style, their lack of overall archetypes will lead to a lack of diverse tactics in spite of the versatility in styles.
i think the run and, in addition to the solid rusdown abilities that some characters already have, will buff certain types of nrs style pressure characters, and the backdash run meter interaction will have little effect on any characters similar to a zod style or a deathstroke style.
another interesting thing is that 4 out of 5 nrs evo games have been won by a character with a teleport move. lol.
pl and kung lao
pl and kung lao
djt and cyrax
kdz and superman
sonic and batgirl
i think that says something about what ultimately wins in nrs games, namely, teleport(obviously among other tools),and,in the case of superman, why a teleporter doesn't win.
Nonetheless, if I had to guess I would bet that mkx will continue the trend and a teleport character will dominate it as well.