Originally Posted by Smashlilman
Sony owns Mephisto. He's apart of Ghost riders universe even though he gets used all the time as the great bady of the Marvel universe. He all ready appeared twice in the Ghost rider movies. He appeared as Mephistopheles in Ghost rider and appeared as Roarke in Ghost rider spirit of Vengeance.
I think the Cosmic Cube will be the beyonder substitute to turn Algrim into Kurse. Since in the comics the power of the cosmic cubes come from a rift that allows the cubes to siphon power from the Beyonders universe.
Again: Sony never used the exact name "Mephisto" in the GR movies.
"Mephistopheles" (the name they actually used) is a "public domain" name referring to an actual being from mythology; "Mephisto" is a trademarked name belonging to a specific Marvel supervillain. That name is, afawk, still available.
As far as the Tesseract: yes, the Cube could very well be the thing that converts Algrim to Kurse. Question is, who winds up with possession of it in this movie? Thor brought it home to Asgard at the end of TA1, and it's safe to say that Odin will do everything in his power to make sure it doesn't get back into Loki's hands. And it's also pretty darn safe to say that Odin certainly isn't going to be the one who transforms Algrim.
Could fall into the wrong hands again, but like Jaqua, I believe the Tesseract has run its course for now. I think Odin will secure it almost immediately in this movie, and that's the last we'll see of it for the next couple of years, at least.