The above scenario will most likely to happen if he comes back to MP Promotions because rumors had it that Manny or Sean Gibbons have sent notice to Quadro Alas if he is interested in being back in their wings as they will accept him back with open arms hehe. Sean Gibbons has so many connections with those sanctioning bodies especially the WBO so this may be the short for an Inoue fight that we have been longing for.
Anyhow, I think if ever he will be given the chance by the WBO, it's because he is the former champion at 118 lbs. So we all know that some governing bodies prioritized their champions when moving up.
Whether we like it or not, there is bullshit politics in boxing . Casimero is the number fighter out of the Philippines to this date that may be the reason why MP Promotions is interested in having him back, he could sell a fight by just talking b_s. With regards to connections of Sean Gibbons just look at Marlon Tapales, Jerwin Ancajas and Mark Magsayo, they all have fought for the championship belt because of Sean Gibbons efforts and even Casimero when he was with him. He got his WBO 118lbs title under MP Promotions.