I get why it feels that way, but I think casting is the main hurdle against Abigail showing up.
Universal has a hard enough time casting 2 or 3 lookalikes for children. It’s why the Stranger Things houses relied on so many Eleven mannequins. Even Cindy, who has the benefit of heavy makeup, appeared only twice in her house because casting. (I also think it was a hurdle for M3GAN.)
An Abigail house, by virtue of Abigail being the antagonist, requires a whole lot of lookalikes for the entire duration of the run. Without Universal knowing the movie is already a success, I don’t see them risking it.