Aside from the obveous discussions about what movies they could riff (and how many), I'm particularly interested in potentially solving some MSTories established in the lore of Season 11. A fair bit of it was done to parody world/universe building, but Season 11 did still leave us with some important questions unanswered:
-Gypsy's Payload: WHAT THE HECK IS IT?! They've been deliberately vague about this since the Backer Screenings of Reptilicus. Why keep it a mystery? What's so important about The Payload? I have a feeling Season 12 won't tell us, as I'm assuming they'll keep having Gypsy deliver it for as long as they get renewed for new seasons. Maybe Season 100 will reveal the secret? We can hope...
-What is the history of Moon 13 and Moon 14?: Its been confirmed multiple times that these bases on the dark side of the moon were appropriated by Kinga to accommodate the return of MST3K, but what were they before Kinga got there? Top secret research bases?
-Borderline paranormal manifestations?: Ardy mentions them occurring in Moon 14. What could it mean? It's a deliberately unexplained line of dialogue. Just what is going on down there?
-Reptilicus Metalicus: Where does this thing come from?! It's obviously built into the ceiling, and seems to obey whoever bears the key. What is his purpose?
-Who is that mysterious "other host"?: In Carnival Magic, a glitch in the Kinga Chrome gives us a brief image of a mysterious host with the bots. The credits list him as a "Matt Claude Van Dame". What is THIS all about?! Has Kinga had other, less fortunate test subjects between Mike and Jonah? Could this guy be taking part in a second experiment in another SOL, or perhaps even in the lower sections of the SOL that Jonah's on?
-How did the Bots get back on the Satellite of Love?: I know, I know, it's just a show, but this one has obviously bugged a lot of people. It's been the #1 question since the show came out, and Joel has essentially responded by saying he didn't really care. However, the fans did, and Joel has more recently discussed solving the mystery in a future season. Really, just a simple scentence or two from one of the bots would do. If these are the original bots, that is...
-What's with the extra Bots?: Season 11 had a running gag involving numerous Toms and Crows running around the Satellite, sometimes trading places in the theater. What is up with this? Just how many of each bot are there? Are any of them the originals?
And finally...
-Who is Kinga's Mother?: I know, this is a weird one, but in an interview before the show hit Netflix, Felicia Day admitted that she had been told who her mother was, and had been swarn to secrecy. I wonder who it could be!
That's all I can think of at the moment, folks. Anyone got any other mysteries they want to see solved?