According to ExMiami, Miami Worldcenter is adding a 40 story tower to go along with it's mega mall in Downtown Miami. 

Recently city commissioners approved street closures for pedestrians only, which would include portions of Northeast Seventh and Ninth streets between Northeast Second and North Miami avenues. (This can be read here)

Bloomingdales' and Macy's are the planned retail tenants for the project.

Below are renderings of the site, plus video.

Current Photos of the Site

Miami Worldcenter Renderings