i actually think its too late for NT to do anything to the combat if they get a bad response when the test is over. Tweeking a little of the combat would ultimately need to make tons of other changes that i doubt they have the money and time for. The most i can say that they are looking for, is whether the combat gets a good or bad response. Nothing else.
But theres also the pace of the game, the platforming of the game, the story basically everything. And maybe some dialog can be edited, but as far as i've seen, the combat looks like its already in the final stages. Nt already said that the first thing they were working on is combat and its been 2 years soooo... i doubt they still are adjusting the combat now.