Stop whining people. It's not like Capcom forces you to pick between the old DMC and the new DmC. They are just trying to release new ideas to make the game live. Dante from DMC is done with his story already. He defeated Vergil. Done. Then we have Devil May Cry 4 with Nero. I remember people used to bash Nero and yada-yada. But you have to understand, Capcom is sort of mentally preparing you for DmC. Already in DMC 4, you spent most of your time playing Nero, less of Dante. Dante appears here and then to troll Nero. He wasn't a main character anymore. I think that is a good move. Sometimes, when a hero's story is done. It's done. No point trying to drag him into another adventure that makes fans feel as though they just got slapped across the face with a sloppy pizza. Think of DMC 4 as a transition between the old DMC to DmC.
I suppose this is a trailer that shows more information than the gameplay trailer. You see Vergil and Dante teaming up in DmC. It's going to be interesting. By the end of the trailer, I also sense a split... dun dun duuuun~