WTF.
Isn’t he dead?
No barrier to record companies - look at the way every breath that Eva Cassidy ever uttered within 15 ft of a tape recorder seems to have set to an anodyne backing track and packaged up for the elevator market. Buddy Holly was still releasing "new" material more than 5 years after his death and I suspect that once his various relatives have stopped squabbling among themselves over who gets the purple boas, there will be one or two tracks to come from the Nelson family vault.
And, of course, they have been issuing stuff by "Paul McCartney" since 1967...