A lot of long-term planning is underway in Washington, D.C.

"Along with submitting the final draft of amendments to the Comprehensive Plan to the DC Council, the Office of Planning (OP) has also submitted a report on how the city's single-family zones can accommodate more density and the resulting impact on affordability and equity," reports Nena Perry-Brown.
OP is hoping to achieve a much wider scale adoption of accessory dwelling units and other forms of missing-middle housing in single-family residential neighborhoods, according to Perry-Brown, but OP stops short of recommending District-wide by-right zoning for that kind of new density (following the models provided by Minneapolis and the state of Oregon).
"Because SFZ areas are some of the city's most racially-segregated, largely retaining the demographics established by restrictive covenants and discriminatory lending, the report recommends targeting gentle density for particular areas that would achieve equity goals," according to Perry-Brown.
A separate article by Alex Baca digs into the entire package of Comprehensive Plan amendments, referenced above. As noted by Baca, the timeline of adoption for these is still highly speculative.
FULL STORY: Office of Planning Report Recommends Introducing Gentle Density Changes to DC’s Single-Family Zones

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage
Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss
The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Wind Energy on the Rise Despite Federal Policy Reversal
The Trump administration is revoking federal support for renewable energy, but demand for new projects continues unabated.

Passengers Flock to Caltrain After Electrification
The new electric trains are running faster and more reliably, leading to strong ridership growth on the Bay Area rail system.

Texas Churches Rally Behind ‘Yes in God’s Back Yard’ Legislation
Religious leaders want the state to reduce zoning regulations to streamline leasing church-owned land to housing developers.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Caltrans
Smith Gee Studio
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Toledo-Lucas County Plan Commissions
Salt Lake City
NYU Wagner Graduate School of Public Service