Also, I read through all of the posts and there's a lot of rumors going around that Nintendo is losing relevance with young audiences.
It's not, trust me. And I can tell you for a fact that just the Smash Bros. games and the latest Pokemon installments have, as far as I can tell, revitalized interest in Nintendo in both the younger audience and the college-aged audience. I believe if Universal really gives it their all in marketing this as they do Harry Potter and HHN, the Nintendo attractions will do a lot for them, perhaps even rival the Harry Potter areas (which will be a welcome change for me, personally). There's a LOT of innovative things that Universal can do with the Nintendo IP... a Pokemon Snap attraction has been flying around in the imaginations of a lot of YouTubers. I think having a Pokemon game of sorts scattered all over the Universal property (a la Sorcerers of the Magic Kingdom at Disney / the wand windows in the Harry Potter areas) would draw a serious crowd. If they do a Mario Kart attraction, which I hope they do, I believe that the absolute WORST idea is to have a Tomorrowland Speedway or bumper car Mario Kart attraction. If anything, I think that they should tap into the almost competitive feel that the Radiator Springs attraction at California Adventure has, and plus it in a way that lets guests use items (like in Mario Kart). There's a lot of innovation to be had just in the Mario Kart IP alone.
I do wonder, though, where they would put all of this. I suppose it's all but confirmed that Marvel isn't going anywhere, and there really isn't room in either of the parks to put this, so does Universal have a gigantic plot of real estate behind Studios or IOA? Either way, I'm pretty curious / cautiously optimistic about all of this.