Is War for the Planet of the Apes the final film for that

I think it is. Matt Reeves (the director) has moved on to direct The Batman

Ditto.  Went from Planet of the Apes to... Forest Glen of the Apes... & finally... to POW Camp of Apes.

Where the f was the planet?

No, it is not.

Matt Reeves Wants to Make a ‘War For the Planet of the Apes’ Sequel and Has Ideas For What It Would Be About
Posted on Wednesday, July 12th, 2017 by Ben Pearson

While The Batman is clearly the next priority for director Matt Reeves, the filmmaker behind Dawn of the Planet of the Apes and the upcoming War For the Planet of the Apes isn’t ready to leave that franchise behind. He wants to make more movies set in that universe, and already has ideas for what they’d be about.

In an interview with Fandango, Reeves spoke about how Caesar’s trilogy is on a trajectory toward the original 1968 Charlton Heston movie, and how he’s still excited to see other parts of that journey before these prequel stories catch up with that movie on the timeline:

“But the world that’s described in each film is different from the world that we know from the ’68 film, and it becomes an opportunity to explain how we get there, and that becomes an opportunity to hold a mirror up to human nature. And really, when we’re looking at this ape nature, we’re looking at ourselves as reflected in these apes, that’s why we identify with them.”

“When [co-writer] Mark [Bomback] and I came up with the idea for Bad Ape in War, that was to imply the idea that there would be apes out there in the world that Caesar and his apes knew nothing of, and that they wouldn’t have had the benefit of Caesar’s leadership and the values that he had instilled in his community. Future conflicts in this kind of epic journey [may] take us toward the ’68 movie without necessarily ever getting there [and] could be about conflicts between apes, not just conflicts between humans and apes. And so, to me there are many more exciting stories to be told, and I would love to tell those stories.”