You can't climb on the entire wall height wise?

The two routes on the left/middle of the wall (the 12a and 13a) probably could be extended. From what I remember, the rock quality deteriorates the higher up you get and the pitches have very obvious stopping points as they now stand, so we didn't push them up any further. But, it might warrant another look. The 12c and 12d on the right side end at the top of a small slab/scoop and couldn't really be extended any further.