I wouldn't speak so soon.
Taleworlds has access to the underlying code the game works on. Even with this project there are still going to be heavy limitations. TW custom servers are going to have to be the modding standard for the simple reason everyone who buys the game isn't going to directly go download a third party launcher for a different lobbyserver.
There also comes the question of characters and such, you'd have to essentially either save the character locally which could become exploitable or have your own storage service alongside the lobbyserver which would cost money. Either way the project still has a long way to go but i trust these guys will manage it.