No Sub-Zero, Kitana, Kenshi or Stryker?????
They need to be in MKX more than any of the characters you listed. No offense.
About the graphics, as long as they're more realistic I'm kool

I'm not going to comment on what characters should return because we have plenty of threads covering that, so I'll stick to the other topic... realistic graphics.

I have no doubt that MK10 will have amazing graphics and be a natural, but noticeable progression from last gen hardware. I don't think it will quite reach the level of the new UFC game that is hitting stores next month though (just a hunch). MK started out with realistic graphics using digitized actors and it looked great for the time. I'd like MK to eventually get back to looking as realistic as possible and make it harder to distinguish between reality and a video game, much like the new UFC game is doing. I'm a big UFC/MMA fan and will definitely be picking up that game when I buy myself a PS4 for Christmas.