Based on the Marvel Previews #1, August for October 2015, I'd say you need to pre-order the following books in order to keep up with Spider-Man.
Amazing Spider-Man #1
- Regular Cover By Alex Ross
- Design Variant By Alex Ross
- Cosplay Variant Cover
- Inhuman 50th Anniversary Variant Cover By TBA
- Sketch Variant Cover By Alex Ross
- Variant Cover By Mark Bagley
- Variant Cover By Giuseppe Camuncoli
- Blank Cover Variant
- Variant Cover By J. Scott Campbell
- Variant Cover By Humberto Ramos
- Hip-Hop Variant Cover By Mike Del Mundo
- Spider-Man Unlimited Game Variant Cover By TBA
Amazing Spider-Man #2
- Regular Cover By Alex Ross
- Kirby Monster Variant Cover By Paolo Rivera
- Variant Cover By TBA
Marvel Universe Ultimate Spider-Man: Web Warriors #12
Spider-Island #5
Spider-Man 2099 #1
- Regular Cover By Francesco Mattina
- Design Variant By Kris Anka
- Hip-Hop Variant Cover By TBA
- Variant Cover By TBA
Spider-Man 2099 #2
- Regular Cover By Francesco Mattina
- Kirby Monster Variant Cover By Chris Samnee
- Variant Cover By TBA
Ultimate Spider-Man And The Avengers HCF 2015 Edition
Reprints
Marvel Masterworks: The Champions Vol. 1 HC
Spider-Island: Warzones! TPB
The Superior Foes Of Spider-Man Omnibus HC