Brotherhood: Final Fantasy XV, the five-episode animated series that serves as a prelude to Final Fantasy XV itself, will feature a sixth episode. The caveat? It seems to only be in the Blu-ray disc included with the Ultimate Collector's Edition:

FFXV

That swanky new collector's edition is a whopping $269.99 and only 30,000 copies will be available worldwide. So if you happen to really enjoy the five-episodes of BROTHERHOOD, consider investing in the ultimate edition.

Hopefully there will be another way to gain access to that sixth episode (as well as non-Youtube quality versions of the entire series) for those who'd prefer other options.