I think the dev has a burnout. He's trying to get back at it on a pace he can live with. Therefore the game is not abandoned but on hold. The issue is that it can take years to get out of a burnout if at all, so it might take a very long while before the dev gets back on track full time on this game.
The dev's health comes first, but the game is on hold at the least at this point.
The dev's health comes first, but the game is on hold at the least at this point.