An english dub would be great, but like I said, and others have said, and rather they focus on getting season 5 dubbed. I lived with Japanese voices for the first game, I can do it for the second.
If the DBZ/One Piece/ Toriko game gets a US release, I would really like that dubbed. The fact that Funi has the rights to all three is just too perfect not too.
That, and Goku's Japanese voice is just so...not fitting...for adult Goku anyway. But that's really off topic.