If the MK devs do watch this forum then they at least have some idea of what we are about. They must know that TYM is a forum dedicated to spreading competitive Mortal Kombat to tournaments nationwide.
So if they are reading here is my advice:
Get the game, (at whatever point of completion it is currently at), into the hands of top players like Shock,ded_,Reo, Tom Brady and Check. Give these people a week with your game and they will break every aspect of it. They will show you things you never thought of. This is what they do and this is why they are the best. To not avail yourselves of the talent these people possess is only doing a diservice to you, to us, and to the very goal your trying to accomplish.
You want to make Mortal Kombat a serious fighter? Then should you not get it into the hands of its most top players? For they are the ones who can give you the feedback that you need to make the game we all want.
Your idea is great, and probably the best situation for us, but there could be big concerns and hurdles with trying to get it in the hands of all those people. You have to look at this from the point of view of NRS and WB as well as the competitive fighting scene and try to find a way to make both sides happy.
First and foremost, how many of those players live in the same area or close enough to travel multiple times over the course of a week or two? I know Brady goes between VA and TX a lot, but I don't know where the others are.
Secondly, I'm going to assume none of them live close, so they'd have to get other people to play with them. Those people would need to be under NDA, but even being under NDA, WB could still be worried that information they want kept secret might get out. Even if a few of these players live close together, it would be a stretch for WB to trust their game and an expensive Xbox 360 debug unit with a virtual unknown (to them) with no prior history of being trusted in this kind of situation.
You also have to factor in how much time each of those players has to play the game and submit detailed reports to WB/NRS. They would want to see some form of progress while you have the build of their game and there's no precedent or even incentive for you to hurry back with your findings.
It would be great to see all of those players get a build of the game, but it's much easier to suggest a smaller, more controlled environment. That's why I suggested my route since I have the history of trust that WB/NRS would require, as well as access to a 360 debug (or PS3 if need be), so WB wouldn't have to loan out one of their own.