On the 16th, Seibu Lions announced that, as a support measure to encourage train travel, they will begin broadcasting announcements by The Lions players on Seibu Lions Line trains starting March 17th.

Takumi Kuriyama outfielder (42), who has announced his retirement at the end of this season, and Takeya Nakamura infielder (42), who joined the same team, will be on the air on April 11 and 12. During the open season, Shuta Tonosaki infielder (33) will appear on March 17 and 18, and Masashi Kuwabara outfielder (32) on March 20-22. Players other than those listed above will be announced on the day of the broadcast.

It was also announced that the "Station's Favorite Lion Project" will begin on the 27th, and the "Saitama Seibu Lions 2026 Season Support! Seibu Lions Line One-Day Free Pass" will go on sale from the 31st.

Including the new Leo line drive "L00 series" which will begin operation on March 27, Seibu Lions and Saitama Seibu Lions will continue to work together this season to liven up the cheering for Saitama Seibu Lions in the 2026 season.