Variety is reporting that the Fight Club actor may face off against the already-cast Jeremy Renner, who is playing another deadly assassin from the program where Bourne was schooled (surely the film should be called The Treadstone Legacy?) in a film by one of the screenwriters of the previous trilogy, Tony Gilroy (who has penned this one too).
Rachel Weisz is also onboard, which represents a departure from the other entries in the series as they relied on an ensemble of solid character actors as opposed to big stars. Maybe Universal are a little concerned that Renner is not quite a household name as yet, therefore, adding the likes of Norton and Weisz may help build awareness, although the (arguably misleading) title alone will probably take care of that.