A few more updates...
New condo proposal slated to go about 2 blocks away from the ICCU building in the previous post (image from the Idaho Statesman):
Boise State master plan features a number of new buildings, including two more along Capitol (image from Boisedev.com):
And while not Boise related, Garden City continues to add density with multiple projects in the same neighborhood between 5 and 8 floors. The neighborhood is along the Boise river, about 3 miles from downtown Boise.
The latest is a 6-floor condo just down the street from a proposed 121-ft tall hotel (image from Idaho Statesman):
Additional renderings can be found in this pdf:
Garden City Apartments