I'm not sure where he fits in to be honest. You would think Boult is locked in, Henry is playing well, LF offers a point of difference with some pace. We need spinners in the sub continent so playing 4 medium pacers isn't an option.Southee might come back and chapman might get the chop.
I hope not as well, I have a feeling that Southee's best days are well behind him and he shouldn't even be playing for NZ, tests included.