mokap was a joke without a proper story, so I doubt he will be in it. But Blaze had a story to do with the Dragon King, so maybe.

I think Blaze could be an awsome character if he was done correctly. I didnt mind his look, it was the lack of his own fighting styles and fatality that made him bad for me.
Mokap on the other hand just sucked. He had bad moves, bad look and again the lack of own styles and fatality just added to the lamesness.
I actually hope both appear somewhere in the game as it will be good to see every charcter, whether we like them or not, they were in MK. So deserve to be there........somewhere.