I have found the early solicit for the fourth volume of the Clone Saga trade paperback. So how many will there be total? This one contains 480 pages. And the description reads.
The Clone Sage continues as Peter Parker is put on trial for murder! A new Green Goblin debuts! The mass murderer Kaine is killed! The Jackal unleashes an entire army of Spider-Man clones, including the new and deadly Spidercide! The Gwen Stacy clone returns! Spider-Man is hunted by the Punisher! Judas Traveler and the Scrier pull Spider-Man’s strings like never before! And what will Peter do when he fi nds out that Ben Reilly is the one, true Spider-Man? Guest-starring the New Warriors!
Amazing Spider-Man (1962) #402-404; Spectacular Spider-Man (1976) #225-227; Spider-Man (1990) #59-61; Web of Spider-Man #125-127; New Warriors (1990) #61; Spider-Man: The Jackal Files; Spider-Man: Maximum Clonage Alpha, Omega