According to Metro’s planning blog, permanent service adjustments to E line buses will become effective June 21:

• Route E2 will be revised as the Ivy City-Fort Totten Line. The route will operate between Ivy City and Fort Totten station only, and will no longer connect to Friendship Heights station.
• Extra “short trips” on Route E4 will be added, which will connect Fort Totten and Friendship Heights station (bypassing Riggs Park).
• The E3 weekend designation will be eliminated, because the new E2 and E4 will operate seven days a week.