shipperx | Nikolaj Coster-Waldau Speaks Of Season 4 GOT

From I09.com:

Nikolaj Coster-Waldau spoke about how last season changed Jaime Lannister and what this season means for that evolution:

I think the biggest change is the fact he loses his identity in many ways and has to reevaluate and rediscover himself. That goes back to the scene with Brienne in the bath where he reveals this huge secret that he's carried since he was sixteen. He tells, of all people, this woman because I think they have connected and he sees himself in her. The big question, of course, is what happens when he gets back to King's Landing? That's where we'll find out what has changed. At the end of season three something has changed but he doesn't know what it is. I think he surprised himself and doesn't really know why he

went back and rescued Brienne from the bear pit.

He also previewed what that return to King's Landing means for his on-screen family:

I think for Jaime it will be the fact the Lannister family is together for the first time on the show That will be very interesting to explore. It's a very dramatic season and where before you'd have one or two episodes that peak, here there will be a lot of peaks.