If that Stratosphere warming happens.. it will confirm my thoughts about -NAO Winter, but they aren't very correlated, the Atlantic SST index and that.. meaning it could be a boost.
Subsurface is pretty classic El Nino configuration. the pattern doesn't feel like a Winter- El Nino above +0.5 though.
Also colder wave around 160W, -200m may bias short term conditions to more -PNA (vs models)