I hope he's not blind for too long, because as it is he's felt under-utilized this season, but that may play into part of his regeneration plot, which could actually be very interesting, since we know that occurs before the Christmas episode.
I agree there haven't been any major highs, or lows. These are all decent episodes, but that's all we've had this season so far.
I believe/hope that the tail end of this season is going to be epic as fuck though.