I find that proposal for Howell Mill and 14th to be very intriguing. There are a lot of parcels between Northside, 11th, Howell Mill, and 14th (~1/3 of the acreage of that superblock, image below with aforementioned parcels in blue) owned by the same corporation, VLP TWO LLC, with a GT address. This includes the large northwest and central parcels.
If VLP TWO LLC is indeed Georgia Tech, we may see a lot more interesting development expand to West Midtown based off what we've seen with Tech Square. No matter what is developed here, I really hope we see the street grid expanded.
The more development I see over in West Midtown, the more I get confused about where/how transit should be prioritized. Maybe the best idea would be to scrap a lot of the crosstown streetcars and simply add dedicated lane CNG trolleys, similar to what GT runs between Midtown and their campus. Essentially create BRT on Northside, 14th/10th, North Ave, Capitol Ave, MLK, Ralph David Abernathy, etc.