I think Charlo is too young and too mean for GGG at this point, straight up think Charlo stops him so that fight is extremely unlikely to happen now. Andrade isn't as likely either after this fight since Andrade is good on his feet.
I personally believe Canelo isn't interested in a third fight in the slightest bit and moves on especially if he beats Kovalev. So where does that leave GGG? just fight a few more times and collect those paychecks?