Looks like TXDOT's new HQ is moving along. This will consolidate offices along Riverside (a huge chunk of the Southshore District) and at the NE intersection of 35th and MoPac. The article below says that 2/3 leases along Riverside are up in 2022. Looks like the new campus is supposed to be done in Q1 2022.
https://www.kvue.com/article/money/e...e-067acab4b45e
On a non-Southshore note, i looked at Google Maps, and TXDOT has a pretty good amount of land along MoPac north of 35th. That would make for some good in-fill and compliment the Grove nicely.