The Sheriff could still file (within 90 days of last week’s ruling) a petition for writ of certiorari with SCOTUS.
Also, a majority of Ninth Circuit judges could move sua sponte to rehear the case.
There are so many moving pieces to this puzzle that I hesitate to make a guess, but I would say today’s action at least makes the first less likely.
I think the solidness of the Peruta opinion makes the second less likely.
It appears the left is punting to delay arrival of a carry case at SCOTUS doorstep. That may happen soon anyway with the Drake case out of Third Circuit.