In regards to the next update: the reason it is taking so long is because WW is also working on the next few updates as well. The plan is to have the next update out by the end of July at the latest, then the next few updates will come out roughly one month apart, then we'll have another wait for v1.0 to rework the early game, at which point the game will prepared for a Steam release.
He's doing both at once. v1.0 would redo a lot of the art up to the Jake arc, which is like a year's worth of edits, on top of all the new stuff he wants to add. This way, he can still put out new updates while also building up a buffer so the wait for v1.0 isn't as bad. So we're looking at a release this month, one next month, and one the month after that, then I suspect we will be waiting between three and six months for v1.0 to give us the rework and endings.