There are so many candidates!
If you're talking about slow devs actually putting some work on their games, you might refer to ttll's
Come Inside or the devs of
Radiant for example.
On the other hand, if you were thinking of conmen who consistently milk their patrons for nothing, there's an unparalleled trio of candidates: Icstor, Gumdrop and Aorrta.
The dev just said later in December, but he didn't say exactly when.
My prediction is it will come out after Christmas.
He always delivered with Dark Neighborhood, yet as excited as I was about his new project when this thread started, I've always been of the opinion that people should wait for results before massively supporting any dev.
Recently I commented on this issue in connection with the game Radiant. That game showed promise form the beginning, which alongside the incest theme attracted a myriad supporters right off the bat. Too much support without palpable results leads to the devs resting on their laurels.