I guess I can't say I'm too shocked about this turn of events...
With heroes revealed last time, it would make sense we got some villains this time (and for them to be the more obvious villains that would be added). It is nice to know that Ginyu pretty much is the character we expected him to be where he could use the Ginyu Force as support and even swap bodies and health with the opponent. The only thing I would like to know is if it will be a case where he will take over his opponent's moveset, or if we will have a case where he will actually keep his moveset (including using the Ginyu Force) while his opponent is unable to use any of their own abilities due to being in an unfamiliar body...
Nappa, on the other hand, is a bit more interesting considering that they are giving him the ability to plant more minions to help him out. Truly, Nappa will be the hard counter to Yamcha. Not really much to say here for Nappa, but it is nice to see him in.
Will be neat to see them in action, but it probably won't be for some time since I can't really think of any upcoming events that will showcase DBFZ at the immediate moment. Not to mention that Yamcha and Tien were still being worked on, so we probably won't hear much else for now.
...
Shall we guess the November-December reveals? If this game is coming out in Feb., we don't have much time left to wait for the game itself (at least in Japanese)