From what I've seen so far I think they can definitely be a Final Four type team.
They added Wesley Johnson, who is a superstar on the wing. Scoop Jardine is a very solid Quannas White type point guard who played well as a freshman but redshirted last year. He's averaging almost 9 points and six assists a game off the bench, just to show how deep they are. Rautins knows his role and can shoot the lights out, and Onuaku and Jackson are solid big men who can score inside, rebound and defend. They also have three or four other guys who are athletic, have good size and quicks and who can do a little bit of everything.
The only red flag to their hot start is that zone can fluster teams still trying to gel early in the season, and as they season goes it can get lit up at times. Kinda like what happened against us last year.
The thing about this year's team though is that they can really, really score. They're averaging 90.4 a game (second in the nation right now) so if they can keep that up that will help them on night's when teams get hot against their zone.