A idea to get those The 'perished' swordmasters crossovering in each their worlds.
- The Legendary Maverick Hunter, Zero, warping into The world of Falana, after The Destruction of Ragnarok.
- The Mithrarian, Dust, finding himself In the 26th century, after the final battle against Gaius.
Dust meet Ciel and The Resistance. Zero meet Fidget and The Moonbloods.
Also perhaps Sigma return from death, thanks for Dr.Weil's research with Zero's original body. Now X is gone, Sigma is after Zero.

Megaman Zero © Capcom
Dust: An Elysian Tail © Dean Dodrill
Art ©  Droll3