I do understand how frustrating this has been around this update, which is one we have been very excited about.
In this case, it is out of our hands while we for the last platform to be approved and we were able to jump on the potential Kingdom issue before it made it out to affect anyone. Had we released 1.4 on Steam and Google Play, we would not have been able to avoid some players being locked out of the Kingdoms screen.
As for the Season, it is likely this will be pushed back to coincide with the update coming out later.
This next Season will be longer than before and in case it was missed in the original announcement thread: