Two pretty popular characters.
And it looks like that leaker who got the Injustice 2 TMNT and Enchantres correct is so far on track with his leak about the DBFZ DLC.
https://www.reddit.com/r/Kappa/comments/7niilu/leakileaks_part_ii_a_statement_of_previous_ones/
So base form Goku and Vegeta should be coming later.