Universal has a plan to turn their classic monsters – The Mummy, Frankenstein, Dracula, Wolfman – into a Marvel-style shared universe. They hired Alex Kurtzman and Chris Morgan to develop the universe starting with the Jon Spaihts written The Mummy: The First Monster being first out of the gate.
If you believe Badass Digest, that last part may not be true. Sources have told them that Universal went back and did some reshoots to Dracula Untold, allowing it to fit into the bigger Monsterverse, making the Luke Evans' film a sort of prologue to the new universe.
This may be true, but the likely hood is that the connections are minor and could be ignored if the movie bombs… and with early reviews being unflattering I would say the possibility of that is good.