On the new map all the East London Line bus replacement services have been replaced with "London Overground Under Construction" which looks like the old East London Line did on the map before it was closed. They forgot to add in all the new stations that are part of the line extension.

Because the replacement bus services never crossed the Thames due to limitations in the Rotherhithe Tunnel then I guess the East London bus replacement services would look funny on a Thamesless tube map but at least if you're going to show the line under construction at least show the full new route.