They're trying to expand in the US, but a 20,000 seat arena is... well, bold. I couldn't find an update on ticket sales, but this won't come close to selling out.
However it does look like a great card. The last 3 matches are SANADA vs Zack Sabre Jr, KENTA vs Kota Ibushi, and Hiroshi Tanahashi vs Kazuchika Okada.