I'm sure it will be a separate ticket to get to meet the characters for this. Or a Genie+ add on.
Nah. Most of the M&G at MK aren't.
It didn't have FP before so it likely won't now. Most of the others are G+ or upcharge though. Town Square, Princess Fairytale Hall, Crystal Palace. Buzz meets regularly in TL without fastpass but the line can be ugly. Country bears wander sometimes, but also they're on the roof sometimes.