I'm surprised that nobody had commented this in the forum.
Square Enix has their own sense of humor, and for April Fool's day the company released a trailer for a non-existent tactical role-playing game called Tactics Alexander. It's gorgeous, it has a delightful pixel art, music, promising plot and also feel like a stab in your heart when you realize that it's not real.
It makes me wonder, what is the purpose of this trailer? Is it just publicity of FFXIV aimed for retro SRPG gamers or do they wonder about the people interest in SRPGs and they want to see how people react at the trailer?