The length will not be extended due to the content, it will be extended because all the legal and bureaucratic apparatchiks will have discovered they have an unlimited financial gravy train, so they will find all sorts of imaginative precedents to drag out the proceedings for as long as possible.
When the time eventually comes to end the cover-up, Goddard or whoever has replaced her will come up with a report which gladdens the heart of all corrupt UK governments who have a lot to hide.
Psalm 2:1 Why do the heathen rage, and the people imagine a vain thing?
2 The kings of the earth set themselves, and the rulers take counsel together, against the Lord, and against his anointed, saying,
3 Let us break their bands asunder, and cast away their cords from us.
4 He that sitteth in the heavens shall laugh: the Lord shall have them in derision.