Hello! Couldn't access my hosting account for a bit (probably gonna change hosts at the end of the year), but the good news is none of us have missed much. That's also the bad news, because there's nothing CK on the immediate horizon.
However! Antkind was published in France earlier this year and, while doing some press for its release there, Kaufman said he's writing a new novel. Via BCKster Jérôme:
[...] in the magazine "L'Obs", he says he's currently writing a new novel ("I must have liked it [writing the first] because I'm writing a second one").
Jerome notes that you can sp[ot the word "second" in the scan below: