It is unthinkable that you would sunset LA and NOT have the features it had. Everyone is now looking at LeagueApps, Demospehere, SportsConnect, etc.
The inability to autoroster during player/coach signups is an absolute DEALBREAKER for me and I'm sure many others once they figure it out.
LA was not perfect, but you just needed to build a better mousetrap, not replace it.
I'd suggest you figure this out quick!