The only XL they released for the 360 was Samurai Warriors 2.
Even they that was a test run since SW2 wasn't released on the PS3 (Only on the PS2/360). The "Warriors" series has a larger fan base on the PS3 which is why its the "Favored" system and tends to receive Extensions such as DW7 XL, DW7 Empires, etc..
While the 360 does not. To add they the unexpected lower amount of people purchases SW2 XL on the 360 is what possibly helped them come to that decision as well.
Its a shame really... (generally speaking). But thats a reason (among many) of how they have become so successful and continue to release the "Warriors" games.
[This signature was deleted at the request of a filthy casual]
According to wikipedia, DW8: XL has been confirmed as coming out on the PS3 as well as a launch title for the PS4 (it will be DW8 plus the XL expansion on one disc for the PS4), but there was no mention of it coming out for the 360 or X1. I hope I'm wrong, but I'm thinking we won't be seeing it.
I went around Ignoring every troll that I came across, then one day... GameFAQs was empty...