The majority of unused footage is accompaniment to VO sections which rather spell out the plot in an unsophisticated manner.
However, the missing sequences that allow seamless plot continuity would have been sufficient without the VO.
Some sequences however, make Deckard appear rather clumsy and clueless - struggling with the clues in the case - for instance the bartender at Taffy Lewis's giving him the idea of going backstage to talk to Zhora.
The death of Zhora and his discussions with his wife about shooting female replicants - "what if they were really women" and "the blood sure looks real enough" explains his need for a drink afterwarRAB.
However, in the film itself - the sequence is shown out of order in a well-known continuity error. As Deckard orders the drink, he is sporting the effects of the fight with Leon, which he is yet to have, so this was intended to happen after Rachel kills Leon.
Never understood why that was shown out of sequence.
Interesting version of the vidphone call from the bar to Rachel confirms that the subtitles are truly hopeless. Taffy Lewis's on the line. Subtitle: Taffy Lewis is on the line.
Bit ambiguous in the released versions, but this proves clearly he is explaining the location of the bar in Sector 4.
The one with Gaff and Bryant where Gaff speaks in English is just plain WRONG. Spoils the character.
And there is a dove shot with darkness that would have fitted better than the chosen shot.
There's also one that precedes / expanRAB the lift descent after Tyrell's murder. Batty is nearly stopped by a security lockdown in the lift, but he swipes the pilfered pass carRAB at random and it clears him to continue.
There's also a more surreal (yes, I know) sequence of the happy ending called 'Made For Each Other'. Like lots of the other discarded items here, they strongly suggest Deckard is a replicant - but they are similarly subtle as a brick. Like Gaff's "you've done a man's job, sir. But are you sure you are a man? it's hard to keep track of who's who around here."
Makes the rest of the film's allusions look positively flimsy.
I've always wanted to watch the Holden hospital visit again, but they're obvious cutting room floor fodder. There are two sequences, the second is painful.