Well like I said, I won't have time to do in-depth digging or analysis, but regardless, 90% of "seasonal" outlooks always find some way to make it cold/snow in the East.
Anyways, regardless of whether we end up in La Nina (by ONI definition) or neutral negative, much of the Pacific remains a heat pump. Now, I know things may change some in this department as we move towards the northern hemisphere winter solstice but the IPWP and WPWP remain expansive, which has been a theme for the last several years.
In the case of the IPWP, when combined with the -PDO regime, is going to yield a stronger gradient across the North Pacific as we move deeper through the cooler season (lower pressure over the IPWP and higher pressure in the north Pacific) which will contribute to a very fast jet stream yielding zonal flow into the U.S.
I'm fearful this is a recipe for strong MJO activity when convection enters phases 5-7 and we all know what that means.
The WPHP is going to continue the theme of intense southern ridging and this could be even amped a bit by a weak La Nina or negative neutral ENSO and will aid in faster jet stream winds across the country.
But of course you have wildcards such as stratosphere, QBO, etc. But when the PAC is a dominant player in this regard...it doesn't usually bode well for us.