If you really want to nerd out on future bike/ped project funding goals, you could hardly do worse than to read through the MWCOG Transporation Planning Board's Transportation Improvement Plan (TIP) for FY 2015-2020. That way you can impress people at cocktail parties by letting them know the status of the Winkle Doodle Branch Bridge Upgrade project.
If that's not enough, you can review the Constrained Long-Range Transportation Plan. Recent additions and changes are summarized here. The only new project listed as "primarily a bike/ped project" is one to widen VA-123 from VA 7 to I-495.