I understand it's an industry problem, but I think credit should be given to Pixar, at least for now. I do have to say, I was surprised some sequels to their IP wasn't actually Pixar, like Planes. I still don't think a single sequel is cause for complaint, though. I generally enjoy the criss-crossing sequels of the Marvel universe because it saves a lot of time without extra exposition at the start. DC is where I'd complain about the lack of new IP because they love rehashing Batman and Superman. But even still, those are Rollercoaster movies meant to be fun, not a deep exploratory plot more akin to spending a day hiking a mountain instead of a theme park. The biggest issue with new IP is convincing the audience why they need to get attached to the characters in the first 20 minutes. Plenty of new movies come out and they typically flop.
I love beetlejuice and have introduced it to the next generation.
Thankfully my son is usually uninterested in legacy sequels/revivals of IPs where he has seen the original so will be able watch it if it reviews well or skip it if not.
Unfortunately when he hasn't seen the older iterations he is often quite keen. We hadn't watched the earlier Garfield films (why would we?) so he was interested and we watched the new one today. (it was aggressively mediocre)