Yes, the eclipse mentioned before made a lot of sense, but I wasn't sure how it functioned. now that you actually pointed it out more clearly, it makes a ton of sense more to me now.
Come to think of it, Dracula's soul is constantly in thrown back into the chaos realm whenever he's defeated/killed. Normally, Dracula is then resurrected by it's power and manifested a new body either by raw power or a sacrifice. So with the castle unable to reappear on our plain of existence thanks to the castle being being sealed away in the eclipse. Naturally, when a eclipse is around, it leaks out evil, and in turn presented an opportunity for Dracula to escape in the past, but this time it was forced to eject dracula's soul out, but not in the way Dracula had intended. thus in 2017 he reappears as a reborn soul with loose ties to it's original evil chaotic power.
Does this make much sense storywise?