Go Ichinose is basically almost confirmed for the newly announced Pokémon Legends: Arceus :
this piece of music is 200% his work.
He may also have composed
this one and
this one but I'm not sure about the other songs that we hear (Adachi may have done some of them).
It's a little bit off topic but I'm kinda sad that Ichinose (and Sato) seemingly aren't working on the Diamand & Pearl remakes (I think what we heard of it was Kageyama) but we have brand new Ichinose music so that's a fair trade.