Internet reports said Sony bosses want Pierce Brosnan to return as 007 in the next Bond film "Casino Royale" and they're also keen for him to star in one more movie after that. So it is possible to say that Brosnan maybe back as Bond. A source tells website Darkhorizons.Com. that rumors about Brosnan being out is just a tactic from both camps.
What actually happen is negotiations between Brosnan and Bond production company "Eon" came to an end because last year things were up in the air, thanks to all the organizational changes taking place. Thus, Sony want Brosnan back because they won't take the risk of recruiting an unknown actor, or an experienced but unpopular actor that could cause them to lose more.