In a recent stream, DC said the tech update will be released in parts. It looks like Jenny's story will be first. After that, a new character story is supposed to be released every 2 months. Let's say Debbie is second, 2 months after that Diane, 2 months after that Roxxy etc. Now you can make your own estimate on when the release will be complete.
And to leave my own opinion on this: How much more obviously do you want to make it look like a cash grab? I wanted to write more, but screw it. I have never paid a cent for the game, but the way DC an his team work is just egregious.
Edit: Economically however, he is doing everything right. As long as thousands of chumps keep throwing money at you, drag it on as long as possible.