Anything exciting teased in the movie or credit scenes?
Yes.
Main Movie The Celestials are likely going to play a huge role going forward and the ending may even suggest a threat greater than them.
End Credit 1 - We get Starfox and Pip the Troll, I'm really interested in this as it may mean we get Thanos back somehow
End Credit 2 - Black Knight tease, I'm actually really hyped about this one. Especially since a mysterious voice is heard at the end of it. I wasn't ready for it, so I can't really recall who it was, but gut reaction was Nick Fury.