"Zombieland" got a lot of attention for having a cameo by Bill Murray among other things and Columbia Pictures reportedly will take the same step for "Zombieland 2". According to Bloody Disgusting, the studio is searching for a "superstar cameo" for the sequel and it has to be someone in the class of Harrison Ford or Anthony Hopkins.
In addition to info about the cameo, the site also learns about the movie's villain. The movie's script allegedly mentions the lead villain will have comedic roots. Moreover, Woody Harrelson's Tallahassee is said to be up against a "hunky rival" after he was previously rumored to find his love interest in "Zombieland 2".
Beside Harrelson, Jesse Eisenberg is the only other star officially attached to the project at this point but other original cast like Emma Stone and Abigail Breslin have expressed their willingness to reprise their roles in the second film. "Zombieland" helmer Ruben Fleischer is on board to return to the same post for the next film and he has planned to shoot it in 3-D.