+1 to the second point. Cap is going tone a big issue for the Warriors this upcoming season. Durant finally got his ring, so he could cash in somewhere if he wanted to. Without knowing the Thunder's situation who knows, maybe he'll pull a Lebron and try to bring a title back to Oklahoma City at some point.
As for the first point, I don't know if I can call the Penguins championship a fluke or not, but I think it's safe to say there's a higher chance of probability that you can see two different finalists in the big dance with the NHL more than the NBA. Success in the NHL playoffs is really just derivative of who's goalie gets hot at the right time - the LA Kings of recent years comes to mind - so I could see the Penguins getting bounced. Plus, they had to go 7 games with both he Capitols and the Senators to even get to the Finals, so I expect the Eastern Conference to be tough next season.