Man, once the new convention center plus whatever new hotel accompanies it is built, the old convention center lot will just be BEGGING for a beautiful, signature high rise that'll be the new pinnacle of downtown!
Imagine something like this, but on a smaller scale, say, 25-30 floors (I would see it as more soft tealish green glass so it's like an impressionistic sculpture of the Boise River):
Plus a new indoor structure for the Capital City Public Market at the base... Oh, just the thought! Just the thought!!!!