Team up with A-1 Studios (who does anime such as Solo Leveling) or Madhouse (who does anime such as Overlord) and make a Mech Arena Anime. You have a lot of back stories with the pilots, mechs, and arenas already. I am almost certain it would be a hit. You would definately have a great following and also allowing Mech Arena to be promoted even further.

Hope it happens! I would certainly enjoy watching it.