Board Thread:Mortal Kombat X/@comment-1772284-20150902211859/@comment-25163804-20151116004045

It isn't much to go on, but ChristianToday (The most reliable source out there [sarcasm]) claims that KP2 will release in Q1 2016. http://www.christiantoday.com/article/mortal.kombat.x.kombat.pack.2.news.release.of.expansion.set.for.q1.2016/70518.htm Here's the source.

I think it could be somewhat likely that they, probably coincidentally, might be right; Q1 is any time between Jan 1 and March 31. If the KP2 itself was available then, a la KP1, and they released the characters slowly throughout Q1 and Q2 (April to June), then it woudl make sense.