Make Your Mark is about to say goodbye · 6:10am Jul 23rd, 2023
From what I learned in this video, there are 2 chapters left for Make Your Mark. Chapter 5 will have 6 episodes, to be released on September 18, 2023, and chapter 6 will have 3 episodes and 1 special, to be released on November 23, 2023. The special will be called Secrets of Starlight and will serve as the series finale. MYM will have a total of 27 episodes. Afterwards, Tell Your Tale will be the flagship series of G5 as it's a much more successful show based on demographic viewership.
Make your Mark was only ever 23 episodes and four specials, as that's what was ordered. I suspect that, should demand pick up, another CGI series would be ordered.
But it's not neccesarily a bad thing, shifting over to TYT for a bit. The writing in Tell your Tale has become actually pretty good in recent times.