I am with you my fellow PotA brother, I must say that much like Christopher Nolan, Matt Reeves built an unbreakable trilogy, he has now set the golden standard for us fans and what we expect in a PotA installment.

But what is more concerning on my part, is the fact that Reeve's Trilogy was supposed to serve as a prequel to the original 1968 Planet of the Apes.

My current theory is that by continuing the franchise with a next installment, and based on the success from that one, the many more to come, it would seem that they are going to turn the prequel trilogy into a reboot from the originals, I doubt they'd continue the story from where the movies left off in the original 5, or the 2001 failed reboot, it seems that they are going to go from scratch, which is smart on behalf of the studio, they dropped various Easter eggs throughout the trilogy that strongly hinted that these were just explanations to the events that would kickstart the 1968 film

https://www.digitalspy.com/movies/a833146/7-best-easter-eggs-war-for-the-planet-of-the-apes/

7 Easter eggs in War for the Planet of the ApesDigital Spy

Or it may be that there is going to be a remake of the old films, and they will be more modernized to better fit in with the cinematic and technologic aspect of the Reeve's trilogy, which I do hope they do so.

Regardless, I am excited, I do hope that Wes Ball does right by the franchise, he seems like an ambitious director just by basing off his maze runner trilogy and we all hope that this next PotA installment comes soon