This Monday, May 8 at 3PM at Hayden City Hall on Government Way will be a regularly scheduled meeting of the Hayden Urban Renewal Agency HURA. At present, these meetings are not broadcast or recorded, so the best way to stay informed is to attend the meetings in person.
The HURA District Boundary Expansion is one of the agenda items. You'll see on the map the existing district in blue (700 acres) and the green areas are where HURA may request to grow into (up to 70 more acres) giving them a total of 770 acres.
Here's a link to the agenda: https://www.haydenurbanrenewalagency.com/_files/ugd/b4baaa_8236d00cdb8a45c0a1294666761cb4a2.pdf