GSP never forgave Nick Diaz for his disrespectful and unprofessional behaviour in the lead-up to their canceled bout at UFC 137. Despite Johny Hendricks' strong push for a title shot, it looks as though St-Pierre's desire to fight Diaz first has won out, and GSP/Diaz is what the UFC will book next. Dana White confirmed this news to Ariel Helwani via Twitter. St-Pierre should be ready to fight by March or April, by which time Nick Diaz's one year suspension for marijuana metabolites will be up.
This gets booked, I hope to god Diaz doesn't fuck it. Just behave until the fight is over. If it gets canceled again I'd be so disappointed.