Speaking to some person on the interwebs via the Twitter, MK creator Ed Boon put the chances into a number:
RT @RickyV831 @noobde I know this is a long shot but are there any plans 2 release SNES versions of MK1-3 on WiiU Virtual Console? EB: 0.0%
— Ed Boon (@noobde) May 4, 2014
Sounds like it won't happen. But then, later, Boon created more konfusion:
Wouldnt U all rather see the (infinitely better) SNES MK2 port on the Wii-U virtual console? It plays so much better! http://t.co/o2yhJ77qgn
— Ed Boon (@noobde) May 5, 2014
Perhaps Boon thought the original tweeter was only asking about Mortal Kombat 1. Learn to read, dungus!
So do you want the Mortal Kombat games on Virtual Konsole?