Well I remember I'd just started with a different Uni when this first started. I remember playing the demo using the WT engine (if you think the dialogue is bad now - boy you guys have some first world problems). Now 3 years in I'm studying with a new Uni, and mirroring my life, the guys working on IW, actually start working on advancing it past redoing the content of the Demo.
Yeah (after actually starting to work on the post demo content) these guys are slow - about on par with Akabur I have to say [seeing how WT is still unfinished, and his newest game is updated at best tri yearly, with next to no new advances in content]. However the art is amazing, their finally actually talking to us, their actually listening to us, and they've actually started to add new content that isn't just a better looking version of the demo.
Geeze, they've even added in skip content options, to get too the new stuff incase we don't want to repeat the story (unlike pretty much every other trainer/porn game out there), even after save ruining updates (i'm looking at you Tyrant, GoW, Superpowered, & [no skin on these guys as they're great] WT Silver)
Yeah we have a lot to complain about; but don't get too pessimistic, it looks like we've finally passed the slog, and are now actually starting to get moving.
Anyway best of luck with you guys working on IW. I hated programing and can fully understand why you guys are so picky about getting things right, especially using Renpy, with such a complicated game; it looks like you've finally got passed the coding hurdle, and can now concentrate on doing what you actually wanted to do.
I only wish the game wasn't so damned complex! (ironic coming from a paradox gamer)
PS: If you do take recommendations, please add characters or events like Fleur Delacour, and the Tri-Wizard Cup into the story, as it would work really well for the story, if the Salazar gets the Tournament dumped onto his shoulders because Dumbles want's to spend time with Grindlewald while he's on parole, he accidently gets chosen as a champion because he pisses of the weasleys, and maybe as an added challenge has to help Hagrid woo madam Maxine. (your free to adapt this to fit your story at leasure, if this catches your interest; however only do this after you've finished with the corruption and lover arcs , maybe as a year 2, story)