Well. Every featherweight wanted to fight WBA champion Leo Santa Cruz. Magsayo too but he cannot escape from his mandatory. Right after the fight, Vargas also called for a unification showdown with Santa Cruz.
Mark Magsayo will need to fall in line now since there was no rematch clause. Vargas wanted LSC. But it also looks like the WBC is ready with another mandatory in Brandon Figueroa. There's also Russell Jr. who claimed to have lost his title to Magsayo due to an injured arm and inactivity which seem legit too.
I think Magsayo needs to re-assess himself. I cannot see many improvements from him in the past few years. The only improvement I saw with his fight against Vargas was knowing how to clinch. And that's actually very basic when you're at the world level. I'm pretty sure Roach taught him a lot. Head movements, jabbing, foot work, combinations, and setting up power punches. It's just that Magsayo cannot execute them inside the ring. Magsayo could've finished off Vargas in the late rounds should he have learned to set up those power punches properly. And not just throw them like Deontay Wilder.