Personally, I hated the new ending. But my opinion on Naruto endings is one of "Sucks", "Don't care", or in a couple of cases "It's okay". I guess I'm not the kind of person the endings are aimed at.
I love the new opening, music and animation inclusive. I only have one problem with it.
The Konohamaru...uh...corps is it, should not be there. And if they have to be there, they should be before Jiraiya. I mean the ending vaguely resembled Naruto leaving Konoha in my opinion, who the hell cares about those three?
I can't help but think that they designed this opening so they can change the characters for after the time skip so it follows the exact same layout, i.e.
Grown up team 7
Other grown up teams
New villians
Other grown up teams fighting
Uuh...a spoiler to replace Tsunade, won't say (don't we have spoiler tags here?)
Grown up Konohamaru team.