depends if by that you mean literally a strong demon then i dont think thatll work. as sparda is , as we all know, a high ranking demon (if not THE strongest) which NT has defo kept as the boss does scream at dante "SON OF SPARDA" so he has quite the rep. if angels ARE just high ranking demons why do they hate Dante so much. surely a child of two of the most powerful demons would be worshipped by them especially one who can seemingly jump from limbo to the real world. i think itd make more sense if angels are a different faction that have different attributes completely. if theyre a small faction itd make sense that theyre all pretty strong (natural selection and all). itd also be a reason why demons hate dantes mother. if shes a demon slaying angel theyd be pretty ****ed at her.
another thought maybe angels are a faction of demons that can freely cross to our world. itd explain why theyre attached to us and why dante isnt stuck in limbo despite having demon blood. also maybe a twist in the end is some order members are secretly angels controlling them behind the scenes.
So far we know:
1. Angels in DmC are not angels of goodness (see Tameem's words)
2. there is no indication of angels in DmC trailers except we are told "Dante is half-demon and half-'angel'"
3. Demons hate Dante. We don't know the attitude of angels. They are not present yet.
4. Dante's jumping ability has nothing to do with angels. Dante is dragged into Limbo by demons, not at his will. He has to find a way to get out, otherwise will get killed.
5. in the background story of Dante, it is said "he comes to terms with
what it means to be a child of a demon and an angel". The meaning of demon and angel is not known yet.
6. In anthroposophy, archangels may be good or evil; in particular, some of their rank are collaborators of Ahriman, whose purpose (anthroposophists believe) is to alienate humanity from the spiritual world and promote materialism and heartless technical control.
conclusion: the meaning of angel is the biggest thing Dante will find out at the end.
In DMC3 manga, angel's realm is a metaphor of human world, because it represent the light as opposed to the darkness of the underworld.