Well, I didn't want to say anything until it was official whether or not we're doing it, but I have talked to Richie about a possible StMB: Season 6. It would, for the most part, be done by me, with some script writing by both me and him, and instead of live action, seeing as he won't want to do that, it would be in the form of a motion comic. He said the idea was cool, but he's said neither yes nor no, reason being Ep. 75 hasn't come out yet, and because of how it ends the series, he says it'll be hard to continue off from that. I'm not going to give up, though! If I pitch some more ideas to him, or show him my skills in motion comic animation (once I get some, lol), he just may consider letting me continue the series. Hopefully he does! :)
You know, you could pull an "Alternate Universe" variation of Stupid Mario Brothers, in that the story/plot is only loosely based around the original story. It would allow the series to revolve generally around the same idea, but give ways to new ideas and other such things that come at the liberty of doing an "inspired re-imagining". It would also allow you to begin where the series originall began, if you chose to, and go back up through the general chain of events, then possibly past and into completely original territory. Just saying.
Beyond that, the idea of a motion comic sounds cool, but may not appeal to the fans as much as the live action series. You'd need some sick story telling skills, artwork, and (especially) voice acting and sound/music to be able to change that. I'm thinking it would be a little too much to go for, in that you'd have to top the original to have any chance of success. Especially without having these videos released via Richie's channel.
Honestly, I'm thinking people should just give the series a chance to rest before jumping on the idea of beginning their own up-taking or re-beginning of it RIGHT after it finishes, but that's only me. :\