Hey there, this update has taken a lot more time than I would have wanted due to a lot of factors like private life, working on other projects (seaside caping) and some mismanagement of scope to be honest. But at this point, the update is VERY close to being ready.
As for the level being stuck and tickets, the level is capped at 24 because I still haven't made all the content for other levels. And as time goes and more levels are added I will also add more plane tickets.
Hope that helps. Wish you all the best <3