The setup for XIV's isekai arc is, honestly, rather dumb: Mysterious Hooded Man (wink, wink), time travel, palette swaps of voidsent and so on. But other than that, you have a top-notch adventure in a land, which is a lot like Eorzea yet different; with same familiar faces who went with you through Heavensward and Stormblood, yet more...mature? That mix of old and new, culminating in a massive lore dump at the end, flipping everything you knew about the world of XIV upside down, is the reason Shadowbringers is the best thing ever done by Yoshida and his team.
Also, best trailer/cinematic since "Answers".