The reason platinum exists in the first place is so STG can make a profit, pay it's staff, and continue developing the game. If they changed AL to be a subscription based mobile game (which they won't), then platinum would have to go away entirely. If they implemented an optional subscription for players (which most games call a VIP subscription), this idea would bring about a "pay-to-win" mechanism within the game and create nothing but upheaval.

I vote no.