* Streetsblog Los Angeles X (formerly Twitter). # Metro To Open D Line Subway Extension By March 2026. The 4-mile Metro D Line Extension Section 1 will extend from Wilshire/Western in Koreatown to La Cienega/Wilshire in Beverly Hills. The nearly completed Metro D Line Wilshire/La Brea Station in August 2025. After a decade of construction, Metro now expects to open the new D Line subway between January and March of 2026. The 4-mile Metro D Line Extension (Section 1) will go from Wilshire/Western