I saw the message and immediately knew it was a bug since I read the update message which clearly says it wasn't going to happen until next month and BM is well known for bugs after it gets updated. I got the message on Dwilight since I have an advy and Noble there (and advy I was hoping to make into a noble, trying to get that done now so I can emigrate her). I didn't have to do anything with my characters though.
As for the change in limits itself, it's probably for the best. Though it definitely sucks for people who already have two characters that they actually put effort into both of them for RP. They should be given enough time to wrap up business for one character if they are going to emigrate them and come up with a reason why they are leaving.
