Unfortunately, Fox has not yet announced whether or not New Girl will get the chance for a Season 7.
In fact, the Season 6 finale felt a lot like a series finale.
I can definitely see his point; the characters got happy endings in “Five Stars for Beezus,” and there were plenty of callbacks to the early days of the show to provide narrative symmetry.
It would be okay if this was the end… but a Season 7 could be absolutely fabulous, even if it was a shorter season just long enough to tie off some loose ends.