IIRC, the announcement of that was the actual closing, so yes, it believe it is sold.
That with the Frost tower proposal, and the KDM announcement of the six riverfront properties up for sale, and CPS still looking at options for new HQ, and things may be changing on the SA skyline in the next few years like not seen in a very long time.
Also, developers are noticing the relatively cheap DT real estate as compared to Dallas, Houston, and Austin.
Things may soon be looking up.