The Office of Planning recently held a meeting in another neighborhood that is going through the historic district nomination process. This powerpoint is very similar to what has been presented in Bloomingdale, so it might be of interest to some who are still curious.
https://planning.dc.gov/sites/default/files/dc/sites/op/publication/attachments/Proposed%20Kingman%20Park%20HD%20Meeting%20Presentation.pdf