Upcoming content of MSEA? (JUMP! trailer added)

This is in GMS too, and you can expect it in all versions.

I didn't know GMS had it too, thanks for the information!
Do you know if Area Bosses (like Deo, Mushmom, Snack Bar, etc.) are affected by the penalties?
I know it says: "All boss monsters will not be subjected to the reduction penalty." but I'm not sure if they also mean Area Bosses with that.

I hope the penalty does not apply to them, Nexon has just released the Angelic Blessing Recipe drop list so I hope I don't have to make mules to hunt for it.