Thanks for asking and looking into workers on a regular basis.
First of all, this worker has already delivered stuff. a) the new whitepaper, and b) the how.bitshares.works and dev.bitshares.works portals.
There is quite some work left on this front.
However, this worker is somewhat delicate as it was created when BTS was quite more valuable. As a consequence, the worker itself is not "fully funded" and the amount of hours we would have liked to spend just cannot be put there.