Many thanks for passing on news of your coup in getting a look at the outcome of the ECM runs for next winter.
I like your conclusion: "Also, what the model is clearly not suggesting this month, is the "flat" pattern of zonal, Atlantic driven westerlies that we've had over the past three winters."
That sounds like a fair assessment of what you've described - weakly positive height anomalies in the mid-Atlantic and negative height anomalies over central and north-eastern Europe. At least we can expect one or two periods of anticipating, or even experiencing, some weather from the direction of Scandinavia, instead of the continuation of an Atlantic autumn which the last two or three winters have brought.
2 miles west of Taunton, 32 m asl, where "milder air moving in from the west" becomes SNOWMAGEDDON.
Well, two or three times a decade it does, anyway.