Hi folks, first, I have to say that I really like the direction you all are taking with the navigation bar, and I'm looking forward to when this is a standard feature on the site!
My suggestion: the outline around the user menu on the top right makes it look a little too much like the old search box, and generally looks like something that is inviting the user to type something in. I'd suggest making this look a little more button-like or menu-like. Perhaps removing the outline and adding an ellipsis?