I had subscribed to email notifications, but did not get any, so perhaps this is news for everybody. The OP-1 seems to be back in stock from Teenage Engineering as I write, for the usual whopping price of EUR 1,399 (incl. NL taxes).
I owned one once and sold it like an idiot, but I am not getting one at this price, it really is too much. My DAW-less setup these days is made of a Digitakt, an Organelle and a Zoom H1n for recording.