Time once again to speculate on the Next Patch for The Sims 4. I feel like that this patch will be big cause I think it will be a Pre Gamepack Patch and add stuff to the base game but I could be wrong. We're way overdue for a Gamepack and with Gamepacks and Expansions usually come big patches that add stuff to the base game as well as fixing tons of bugs.
Another possibility is a big update like cars or updated babies. Also remember the toddler patch came out 2 weeks before Vampires.