Rebuilding Deep Alaskan PV May Return Warmth to East US

Here we have the latest analysis of the Northern Hemisphere at the 400k level to analyze Potential Vorticity (PV). Right now, we can see very little PV values over Alaska (to the up and a bit left of the white circle). This is helping to develop snowy weather over the Eastern United States.
Something we are worried about has, and is still, this PV rebuilding over Alaska. That is looking the case to happen-

This is the 10 day forecast from the ECMWF at the 400k level of potential vorticity. We now see high PV values over Alaska, indicating that the deep low has rebuilt and may lead to warm weather in the East. In case you don't know, higher levels of potential vorticity are associated with stronger low pressure systems.
This rebuilding PV will not help along the snowy weather at all- more of a step backwards, if anything. What is still somewhat reassuring is how we see a jab of low PV values jutting right into the higher PV values, just to the right of the white circle (North Pole). That indicates that a ridge will be in place, helping to keep the stick in the gears, so to say, to keep the polar vortex from completely reforming.
If you have any questions about potential vorticity, because it is a complicated topic, you can ask below and we will try to answer them the best we can, because even I am still learning about it.