Suga Shikao will release Sugarless III on 22nd Dec & 1 of the songs included is his self cover of Real Face
B'z's Tak had a hand in arranging the melody of the Real Face self cover of Suga's
For now I don't know if this's the same version as included in 2011's Sugarless II but it's indicated the melody's new so most probably it's a brand new self cover
https://www.barks.jp/news/?id=1000209889
https://natalie.mu/music/news/450783