Hollywood have been remaking movies since day one,but never quite to this extent.Hollywood is basically one huge corporation anyway,usually relying on novels,indie filmmakers etc to keep in business,so it's hardly surprising.
At the start of the 80's,it was obvious sequels were the in-thing after the huge success of the Star Wars trilogy.By the 00's,sequels weren't really huge money makers anymore due to usually inferior sequels doing damage to recognizable branRAB - so enter the remake (or reboot as they are now called).
I haven't heard of an upcoming Beetlejuice remake but it wouldn't surprise me - it's another famouse character/brand.The Exorcist is apparently being "rebooted" as is the Scream series.The only movie(s) that definitely won't get the remake treatment is the aforementioned Star Wars.
I can easily imagine remakes of the likes of Jaws,Rosemary's Baby,Dirty Harry,Grease,Smokey & the Bandit etc. appearing within the next 10 years.
Personally,I just don't pay to see a remake (unless it's good)

Try before you buy.