An Eventhubs article regarding this "issue" ran an update to the previous information saying the following and i quote "EventHubs reader
Juanito Calvicie notified us that the region locks for only play only apply to gamers on the PlayStation 3 versions of NetherRealm Studios fighting games; online play for Mortal Kombat 9 and Injustice is region-free on the Xbox 360 version."
Now this is pretty confusing as i read it a couple times over and still im not clarified bout the situation, but 2 points to be taken from this:
1.Juanito Calvicie, no clue who he is, so dont even know how realiable this can be, but eventhubs updated the article with this info from him so...salt
2.the update is very open to interpretation, i read and interpreted the following ( the guy notified EH that RLocks apply only to PS3 versions of the games.)
that reads to me as only PS3 is locked out, of all the platforms they released games on and ps4 will not be locked.
Another note also posted here is that Shaun Himmerick removed said tweet since then, is it due to the backlash this will bring or because that info is not set in stone??!!. thats why in my post i asked for concrete info since this great affects me and possibly alot of ppl, im sure pro players in EU regions would like to run some sets with their fellow US friends, as some of us do have connections that can handle the distance ( netcode aside)