[@Wasted Ink]

Aye, if she can learn magic as a hobgoblin, I might have her just go the Dhampir -> Vampire Noble -> Ice Blood True Vampire.

Although, if there would be more 'True Vampires' other than Ice Bloods, it'd be cool. (pun not intentional...hehe.)

Or alternatively Dhampir -> Vampire -> ??? 

There's not canonically anything after a vampire, and it seems a bit like a dead-end rank. If there was something else after that it would be pretty cool too. Maybe make something up that compliments magic? I dunno. It's just weird for vampires not to be good at spellcasting to me.

[@December]

[url=http://re-monster.wikia.com/wiki/Rank_Up_System]Rank up System[/url] 
It doesn't have an extensive list, and some info is missing I think but this is probably the best one you're gonna find.

EDIT: And I'll get to a post after eating and working on a post for something else.