Megumi is forced to Summon Mahoraga to kill Haruta and hopefully Sukuna but right as Mahoraga gets summoned and is about to backhand Megumi, a portal appears and outcomes, wait, Mahoraga? but this one looks like it's from the future (what is going on?

Mahoraga: hand still raised to bitch-slap Megumi, looking at the other Mahoraga confused

other Mahoraga: has a more futuristic look to him

Megumi: also looking at the other Mahoraga

Sukuna: looking from the first Mahoraga to the second and back to the first WHAT THE FUCK!?!?!???!?!?