Interesting developments IMO. The current WWB should migrate and weaken with time. After that, I don't see anything notable for the next few weeks so my guess is this peak will be coming soon and if guidance is right, probably peak within the next few weeks?
Also note the IO dipole weakens considerably as forecasted.
As far as the MJO goes, that has been the main driver of the pattern. If we assume the euro is correct, it looks like we get another wave into the area near and just west of the dateline later on during the first week of December. That probably would mean towards mid December the east may cool off again.