All your arguements are good, and my Zelda comparison wasn't the best. I just don't think he should be called a poser since its a remake. It doesn't seem fair, especially since its not released yet and that we know almost nothing about his personality.
But he is a poser. He poses as Dante. And we know only one Dante. And it's not DmC Dante.
If he really was Dante in a legimate way he would not need to tell anyone he is Dante. But he's a poser - a character made with Ninja theory's art style and equipped with demonic powers, two guns and a sword plus the name Dante.
Let's say we look at DmC Dante in a different perspecitve: Supposedly we say "DmC character is
a Dante. Afterall many people have same name in common."
But then how is DmC Dante original? He has been given pretty much many of the things that defines DMC Dante.
Demon powers
Sword
Guns
Amulet
Similar jacket
PLUS because of fans rage white hair and red highlighted jacket in "Devil Trigger".
And rumours has it that he will have white hair at end of DmC. You may say "That means he will be Dante!", but no.
Dante is not half angel
And he was born with white hair.
Also characters can live on even though games aren't tied to eachother. The Legend of Zelda serie shows us that. In every Legend of Zelda we see the same old Link in a different but PRETTY much same form.
And we have seen Dante in viewtful joe and another game. Is that Dante? Yes.