Lowtown, Lowertown, Undertown?
Downtown San Antonio?
dunno, at least it seems like Austin may never have to find out. I don't think there's an equivalent node for density possible anytime soon. Imagine Austin shows a "regional center" dot at the I35/45SE intersection, but I haven't heard of anything really developing there (and if it ever does, it'll probably be more of a Highland than a Uptown or Robinson Ranch).
https://www.austintexas.gov/sites/de...ded2016_sm.jpg
I like the Uptown term (as mentioned, it contrasts well to downtown), but if that marketing sticks it means we'll have gone from one ambiguity to another. A bunch of people use "Domain" to mean the overall region, not just the 300 acres of planned development (e.g. the stadium at the "Domain"). Now when people say "Uptown" do they mean the region, or Brandywine's 60 acres of it.