After MKD I think that the fighting genre should take a break. Seeing how big the MK universe is with all the characters, realms and backstories I think they should make adventure games or even crossovers. Plus games today need to have the type of fighting engine MKDA/MKD have. For example:
-I had an idea once for an action game where you pick a certain race/group (SPECIAL FORCES, EDENIAN, LIN KUEI, NOMAD etc) and you would run around the realms fighting in Unreal Tournament style but up close to MKDA fighting stuff.
-A game about Edenia's backrgound or the war with Shinnok would be cool. Even an adventure game about MK3 or 4 or even 5 would be cool.
-Soooo many crossovers could be done such as with Street Fighter or Killer Instinct.