There is an updated projection of the 505 CST tower. Now at 750 feet. See link.
http://www.bizjournals.com/nashville...image-for.html
A new 30 story Bridgestone headquarters in the SoBro area of downtown.
http://www.bizjournals.com/nashville...d-1-7b-to.html
Also, a new 35 story Marriott in downtown.
http://www.bizjournals.com/nashville...ott-hotel.html
Lots of new potential skyscrapers going on in this city.