We've known that there would be a cross-over between Lightning Returns: Final Fantasy XIII and Final Fantasy XIV for a little while now, but Square Enix has detailed this all a little bit further.
The items, which will be obtained via completing a question, will represent the different Grand Companies found in Eorzea. This means that there will be swords and shields for Gridania, Limsa Lominsa and Ul'Dah that will accompany a Miqo'te themed outfit.
The three different sword/shield combinations can be seen below, as well as accompanying outfits.
In addition to this, Lightning Returns will be receiving numerous other cross-overs, the most recent of which was the announcement that Lightning could dress up like Aerith Gainsborough from Final Fantasy VII.
While the game is due to release in a few months in Japan, Western games will have to wait until February next year to play Lightning Returns: Final Fantasy XIII on either PS3 or Xbox 360.