I was rewatching the new 07 trailer and i noticed something. If you look at the white knight demons face it is comparable to Nelo's face. Now heres my theory. After Nelo was defeated in DMC 1, maybe Berial(the new one in command) gave him another chance but this time gave him creatures to command. He then trained the white knights to become soldiers and used them to steal Kyrie for a purpose. Kyrie would get Nero to follow them and then Dante would play the good guy and try and save Nero. Maybe then Nelo has a huge role in the story. We won't know till the game comes out.
[/IMG]
Here compare them.


Here compare them.