If SNW absorbs the plots of Soundstages 22-25/28, alongside the buildings of Panda, Studio Cafe, and Restrooms, alongside the current TF queue..then that would give them about the range of 4 acres.
However, my assumption unless if
@Chris says otherwise, is if Panda/Restrooms/Studio Cafe/TF Extended are staying; which would lower the size of the land to about 3.22 acres.