Twitch Prime gets you FFXIV ARR (PC) for free.
If you already own the PS4 version but have never registered the PC version this is essentially a free month.
Shadowbringers access will give you access to every expansion. I don't know if the pre-order will give you earlier access to Heavensward or Stormblood.
FFXV crossover doesn't happen until April. Requires Level50 and Praetorium beaten.
RECRUIT A FRIEND! TAKE ADVANTAGE!: https://na.finalfantasyxiv.com/lodes...riend_recruit/