I have kind of a crazy idea.
What if we had three separate timelines all happening at once, and each one would culminate in the War of 1999. Each timeline would be a "possibility" of how the events leading up to the War of 1999 could happen. None of them would be THE canon per se, but they'd all be canon in a way because they'd all be one possible outcome of the origin events.
Timeline 1 could be the original timeline. Dracula is Dracula and isnt related in any way to the Belmonts.
Timeline 2 is the LoS timeline where the Belmonts and Dracula share blood, Trevor as Alucard, etc.
Timeline 3 could be something else, maybe Vlad Tepes as Dracula.
And because they'd all be technically happening at once, but in different continuities, we could have more games, different characters that don't necessarily have to overlap timelines, etc. It might get kind of convoluted if not done right, but if the devs took the time and care to organize it could be pretty cool and give everyone the opportunity to tell their story.
The War Of 1999 could be the end of the world or could be where the Belmonts avert such a crisis. Dracula may not even necessarily be a person but more an "essence" that inhabits a worthy vessel when such a vessel is found, hence difference "people" being Dracula.
I dunno, it would be an interesting idea to me. What do you think?