Have any of you thought about there being a 4th generation protagonist after Kio?
The reason why is because there's still around 60 years that need to be covered. It would be unrealistic if Kio was at the tail end of the century.
My guess is that Kio's story will probably be around AG late 160s - early 170s and the inevitable movie released a year or so after this series ends will feature the offspring of Kio around UC 190s piloting the AGE version of the HI-NU Gundam as a homage to Char's Counterattack rounding off the original meta series.
But hey, I could be wrong. Who knows?