I do not believe that the implication was so much that it was to be the first of a series of "Fleetwood Mac" shows, but the the packaging itself, listing the CD as "Dinky Dawson's Live Archive The Dinky Who? Series" would lead one to believe that there were to be additional releases, possibly by other artists Dawson worked for.
His web site would bring you to the same conclusion. Most likely the licensing could not be worked out between the performers and the label.
As to Mick's involvement, he "sequenced" the disc and if you remember, the review copies originally had Spencer's R-rated version of "Blue Suede Shoes" in place of "Albatross".
It would have been a shame for that version of "Albatross" not to have been released as it is one of the finest they recorded IMO.
Listen to the version on "Live At the BBC", which they recorded just days after cutting the studio version. They can't get started and after they do, they can't seem to all come together for the ending
