Base documentation?

Work on documentation (in English) for Base seems to have stopped,
unless I've missed it. I see a lot of v4.2 drafts of Base Handbook
chapters on ODFAuthors, and a few reviews, mostly from October 2014,
and the tasks list on the wiki shows several chapters checked out for
work (which may or may not have been completed).

Can the Base enthusiasts bring me up to date? (I know there is a more
recent version of the Handbook in German.) Is it worth my time to go
through the existing English drafts and see if they are publishable? I
know there was talk about combining the existing "Base Guide" chapters
with the translated "Base Handbook" into a document to be renamed
"Base Guide", but I haven't seen any evidence of this occurring.

Thanks! --Jean