Is this Tenzen the FFXI Tenzen? He looks VERY similar, armor and hair. Also, Senri mentions he has a Pheonix blade, which is the weapon Tenzen in FFXI has (it contains the literal embodiment of Pheonix, which is a "Primal" in FFXI. It could be another homage like Krile and Ramza though, but then again, Iroha visited Eorzea too and the name of the orchestration roll given by the Auspices quest was "Iroha"...