Despite Final Fantasy being a Square Enix property and Phantasy Star a Sega property, content from Final Fantasy XIV will be making its way into Phantasy Star Online 2. At a Phantasy Star event in Japan today Sega and Square Enix announced a partnership that will include adding Miqo'te outfits and the summon Odin as a boss in Phantasy Star Online 2. Some additional content will also be coming and they're expected to arrive this summer. PSO2 currently remains as a Japan-exclusive game and it will be receiving a PS4 release this year. There is currently no information if Final Fantasy XIV will see PSO2 content. You can catch glimpses of the content coming in the trailer below.

Source: Silliconera