As in finally going into the future? DMC 2 was, as I understand it, the latest in the timeline. DMC 3&4 were prequels.
Or do you think they will ignore that DMC 2 ever happend? (probably the smart thing to do) Personally I hope they do acknowledge it because I love it when dumb shit like this comes full circle.
EDIT: I meant Fast and Furious 7 (or Furious 7) not 6.