This game is never going to develop much longer. The dev had issues with his previous code DESPITE developing it with an entire team.
The problem is, the game has become too advanced for Ren'Py to be able to handle the code easily.
The solution is obvious: use another engine.
Another point is, the rework has been decided to keep fucking over the supporters of the game. They happily pay and the game hasn't had any development in a couple of years. Dark Cookie found a way to keep milking his supporters and they are stupid enough to fall for it.
HONESTLY. The game is nine years old now. It is being done with a simple engine that was never meant to support an adventure like this. I hope the dev finally figures out to move to a better engine. Realistically, it is going to be abandoned soon.