There were a few rumblings awhile back that the guys who have recently done orchestral overdub albums for Aretha Franklin and Roy Orbison were working on a (presumably) similar Beach Boys project. (Interview here:
http://www.soulandjazzandfunk.com/interviews/5157-a-brand-new-aretha-the-interview.html )
I'm guessing the result is this listing currently up on Amazon UK:
https://www.amazon.co.uk/dp/B07BYPQB1PThis is decidedly far less interesting than opening up the archives for unreleased BB material, but I can certainly at least hope this is another shot in the arm for the BBs and their catalog.
For those unfamiliar with the Franklin and Orbison projects, they consist of taking the old/vintage recordings and rejiggering them mainly by adding an orchestra (the Orbison album also featured partially re-recorded band backings provided mainly by Orbison's sons).
The Orbison album was career-spanning, so it had 60s vintage stuff but also a few of his late 80s tracks. It'll be interesting to see if a similar BB release does anything beyond the obvious 60s hits.
The Orbison album was mixed. I thought a few of the tracks sounded interesting. I thought the "rock" songs, the uptempo numbers, sounded pretty goofy with orchestral overdubs. It works much better of course for ballad and mid-tempo pop songs.