Extended East London Line on maps

Do we know when the next tube map update will be?
Presumably it will have to have at least the section north of New Cross/New Cross Gate on it as all that's on the December 2009 map is the line as it was in it's Underground days but with the "Shoreditch" label replaced with "Shoreditch High Street", and a note in the key saying "Shoreditch High Street to New Cross and New Cross Gate in under construction".

I can forsee some confusion as there is no indication that the line will/does exist any further north or south.

Edit: I can spell "London", honestly