Mouse key skin quest, we all are waiting for the major updates that may change piggy for a while, lets start with decay part II, so, as epictank said about it, there will be an 8th season coming with it, which concludes that there may be a infected bunny alt skin. Now lets get to the MouseKey Skin quest, I believe it will be something to do with Intercity. Because, if you look at intercity's description, it says "upcoming quests" on it, which could mean that you will have to play intercity to get the mouse key. IT'S A THEORY, A GAME THEORY! (rip matpat)
