There are differences in the characters, especially Kirk, Spock, and Uhura. Pike may be a more prominent player, if Bruce Greenwood's comments about possible sequel appearances amount to anything. The new Enterprise is enormous compared to its predecessor, even larger than a Galaxy-class starship, and has significant technological and architectural differences. And anything set prior to the next film, as any tie-in would be required to be, would be in the 2250s, nearly a decade before the TOS timeframe. The characters would be younger, less experienced, and would probably behave differently as a result.
Also, I'd think that novels based on the Abrams continuity would also try for the style and attitude of the movie. The idea of the reboot was to draw in a new audience, and presumably an Abrams-continuity book line would be aiming for that same audience.