I really hope the Rainey St District proposals get built. If those massings in the rendering below are completed as proposed, it will be an awesome sight as you pass through Downtown.
I don't think we can read too much into the height of the Lambie proposal based on the massing. The developers were downplaying the scope of the building because of the whiny Towers of Town Lake crowd as well as traffic issues which is why I-35 is empty. They would have a harder time arguing against any congestion increase if they showed an actual aerial of what I-35 looks like most of the time.