The original version was listed here (http://pso2.jp/players/catalog/scratch/ac/20201202/).
Please note that this scratch ends with the maintenance of JP server this week. After the scratch is delisted, this detailed scratch item list will also become inaccessible soon, I guess.
Seeing from the list, the new items are Matoi Law Hair, Matoi Chaos Hair and Idola Matoi Pose. The outfits seem to be using the standard Ruby color variation of Helios Dilua and Carretera Vinto series. Still I heard that Ruby variation of Helios Dilua was omitted in the global when it appeared in Legendary Heroes AC scratch, I'm curious if the new scratch will include the Ruby version.
Also Matoi in Idola (https://twitter.com/i/status/1187566953147158531).