I know there aren't any but would anyone agree if they add Vampire Lords that replaces the "Master Vampires" in Dungeons at high levels?

That reminds me, I was wandering around at night time out in the open and a random bunch of bats flew past me, it looked exactly like the Bat skill for Vampire Lords, I looked around to see if there was anything but nope, they just dissapeared, I was scared there were wild Vampire Lords, kinda weird

Can't be only purebloods and people turned by purebloods can turn into vampire lords. Plus molag bal does not hand out the pureblood thing like cookies Harkon had to sacrifice 1000 people to bal and serana and her mother had to have six with molag bal to get it lets not forget they say that most don't survive the "encounter" with molag bal.

To me molag bal would not make people into purebloods if all they do is sit in a cave or charge a city with only them and two thralls.

True but you'd think SOMEWHERE there are others in existence, especially the master ones.

This. Even if bethesda did add them they'd be EXTREMELY rare.

The master vampire's you meet are just masters of their little small group as I said if you just lead a small group of vampires in a cave I don't think you will even get Molag bal's attention. Lets not forget the master vampires you meet in game are thin bloods.

I mean if a master vampire/person wants to be a pureblood you either have to other yourself to molag bal on his summoning day or sacrifice people on a grand scale. For example if that master vampire in morthal took control and killed everyone and offered them to molag bal then maybe bal would just look over his shoulder to see whats up.

I mean if bethesda adds vampire lord encounters it would be an EXTREMELY rare encounter.

I think you guys need to remember that normally GamePlay Mechs does NOT go well with the lore a lot. In which case, they can just add Vampire Lords to the leveled list and it wont even matter. The lore doesn't rly effect those parts of the game cause it doesn't matter.. The only thing lore-wise about spawning creatures is where they spawn, ye' know? So don't give me any of the "They gotta be rare!" bullcrap cause I can simple just say that Dragons gotta be rare after the MQ then since Alduin isn't resurrecting them anymore... OR maybe say that Dragon Priests gotta be rare since they prolly didn't have many Dragon Priests back in the old Dragon Wars.. Right? And both Dragons, and Dragon Priests, are NOT rare for me for sure.

Same goes for Dragon Priests, but I find them at the end of every Nordic Dungeon.