Haha, my friend - it's only overdone when it's done poorly - something you don't need to worry about. :)
I know you'll introduce other stuff too, thinking of interesting twists - whether in dialogue, or presentation - seems to be your milieu. :D
But yeah, I could talk about it for some time; left a (slightly) verbose review, but one that could easily be updated as the story progresses and new perspectives are revealed.
Now, I've got no clue what that change'll be, but I do have quite a few guesses, ranging from the plausible to the mad.
My free time evapourated (more's the pity, I was gonna try for a jam, myself!), but rest assured that I'll be eagerly waiting for Release II! :)
p.s. and well that may be true re: Mouse, it's also why Hackett and Mouse SOLVING THE CASE was... pretty dang great