Anyhow, the two bottom images represent two forecasts. The one on the right is of the NCEP (essentially the GFS Ensembles), and the one on the left is from the ESRL/PSD (they have their own ensembles and thus, in my opinion, are more trustworthy). The ESRL believes the WPO will go down even deeper into negative territory as we approach December, but gradually go back positive as we pass through the first week or two of December. On the other hand the NCEP believes that the WPO will succeed in trying to stay as negative as possible well into December. However, note how the NCEP begins to rise near the end of the forecast. This, combined with the trending-positive ESRL forecast, tells me that there is a consensus for the WPO (thus the Omega Block) to be weaker in a week or two than it is now.
All in all, I feel like I can say that the first two weeks of December will be lost to this Omega Block. However, supportive signs are showing up that tell me the last half of December will be open for more winter-like conditions. Fingers crossed!!