This is totally weenie range and just the GFS but you have to love it's evolution with respect to the northern Pacific and its response across the Arctic domain. One great note to see is not a strong PV (at least in terms of tropospheric PV). This is one reason I'm big on blocking scenarios this upcoming winter because with a rather robust EQBO already in place, it might be very difficult for the PV to become established and strengthen as we move through the Fall and into the early winter.
Anyways, we see plenty of little PV lobes get dip south at times and what I really like are these height anomalies within the Arctic...core of the anomalies are right within the Arctic domain around the North Pole region and you can see the ridging building SE to NW into Greenland. We could get some periods of rather robust -AO/-NAO combo and when you throw in transitioning PNA's...big potential could loom early in the season.
I do think we could be active early on then we may get a bit of a lull and boredom for a few weeks (which could freak some people out) but that is part of another cycle/transition, (or pattern reload). After that reload if blocking can become established and the norm it could be quite fun.