The first Gundam Seed episode featuring the new FictionJunction song 「distance」 as Ending Theme has been aired. It has not been announced yet how it will be released.
Also a few weeks ago, they aired the Gundam Seed episode featuring FictionJunction YUUKA’s “akatsuki no kuruma” ~ReTracks version, as Insert song. Even thought it’s part of the ReTracks series (like See-Saw’s anna ni issho datta no ni), no single release for it has been announced yet, so we can expect it to be either c/w song of FictionJunction’s single or be included on a future album release of the group. Enjoy!