With people shelling out to fill the patron requested character updates, there's zero chance he's going to just drop things. As was cited, maybe having someone enthusiastic to help with writing (probably one of his patrons who would do it for free
). But there's too much cash. Doing another game for fun on the side doesn't mean he's pushing aside a project he's been working on for years.
Especially given dude pulls enough money to just do this for work instead of working a normal job now. "Would that I could say the same." as the saying goes.