I still can't understand why it isn't on the switch yet... it has the potential to become as good if not better than Animal Crossing. I am more than sure that if they can make so many Sims games and DLC's, it wouldn't be so hard to make a MySims game again, especially for the switch.
Anyway, regarding the servers, if there was a local play instead of needing to use an account, it would make things a million times easier, but even so, there would be needed some significant changes to the game to be able to use all the online features. Not impossible but also not something easy to do either.