The redesigned all-new top bar has a Help dropdown menu. There's a Meta item in there. That's a great thing, because now you can access Meta easily.
On Meta SuperUser it's changing into What's Meta:
How do I return to the main site from Meta (without typing the URL manually)?
I can visit my profile and click main user, but that's not something you would do intuitively. Am I missing something? If not, then I think appropriate item should be added to the Help menu (so you can return from Meta the same way you got there).