i know it could be a problem with the "financing" of the world. But in days of ark, haven and hearth, life is feudal etc. i think it would be nice to have the possibility to "obtain" a private server. There could be limitations like no premium status for private server, or, a globalized "premium status". That could work like premium is account bound, So, you can play on every server you want, but you have to buy premium from the devs.
That way it could be attractive for more player (esp carebears) but the devs will get the money to grow the project :)
Just an idea. Discuss ;)