John has been interviewed on film (Synth Britannia), the internet, CDs, radio etc in recent years more than ever before, so I don't feel we're really due another interview - he does need to maintain his elusive quiet man status
Personally I think
one interview in whatever form, covering The Garden, TGS etc would be nice, but not essential. I certainly don't think there should be one CD for each, that would be totally over-egging the pudding.
I'd rather hear him talk about new and future projects, especially since it's well over a year since the remasters. It's a bit late now, so the emphasis ought to be on the new.