Hello, I play from 2 weeks,started with some days of trial then i bought A Realm Reborn because i thought it was the latest expansion, so i noticed later it wasn't I got my first character to lvl 50 and so I bought the pre-order of stormblood hoping that heavensward is included with it, but right now it says I'll get my key in february, so my question is, with this key I'll be able to play heavensward also or I'll just have to buy that singularly?

Thanks everyone for your time!