Unlikely to be a bonus dvd (never been done before).
More likely to be recorded at great expense then left on a shelf (been done before).
Two big precedents:
- Madrid 2001:
Considered to be released on dvd and recorded with multiple cammeras and a special mixing track, but abandoned after discover the sound from the audience was so loud that got not only into the audience mics but also all the other mics from the stage (MK's mic etc etc)
Imho, an excuse, as they recorded also Bilbao, Newcastle and Glasgow, all the concerts with the same set list to mix it, probably it was too much effort for what a DVD will sell...
- London 2002:
Mark Knopfler and friends at the Shepperd Bush, recorded with multiple cammeras and with Jools Holland and Jimmy Nail as special guests. Not abandoned as it was recorded to be used as promotion for the Ragpicker Dreams cd. Some scenes from this concerts are on the Ragpickers dream are on the press kit, but very short ones, specially from "Quality Shoe" and "Why aye man", that was fully included as a video bonus in the "Why aye man" cd single if I remember well.