I have a naive hope that next year the record company will re-issue the DS back catalogue with special editions with bonus material, as it will mark the 40th anniversary of the first DS release, but, as I say, it's a naive hope.
For the 20th anniversary, the sultans of swing comp was released and it contained bonus material from 96 tour
For the 30th anniversay, nothing has been released, but Mark was on tour
I would love to have same hope as you, but in 98, Ed was still there, and you can see that after his departure bonus material from previous years hasn't been released.
Well, The PI comp in 2005 contained few more bars in STP and a "new" song (ATRR) that has been released few months later.....what a big deal !
Ok you will say that the privateering box set contained reherseal stuff...but not really gems
so if you look at 1998 and 2008, I don't see why in 2018 would suddendly come those special editions we all are waiting for....but I (really) hope I'm wrong