At long last, the majority of guidance projects a clean mid-latitude response to WPAC MJO forcing (+TNH). Very delayed but not denied.
Note how the projected height anomalies are fairly similar to map of correlations to heat content within the pacific warm east of the dateline (WHWP).
The southern circumpolar jet is no joke. https://en.wikipedia.org/wiki/Roaring_Forties
Full blown tundra climate at 46 degrees south latitude and sea level: https://en.wikipedia.org/wiki/Prince_Edward_Islands#Climate