The news comes via the publishers twitter, although it does add that "the benefits are nice," which perhaps will have some at ease.
@DeanRheims NFS will require an online connection, but the benefits are nice. More variety and a more rewarding experience with friends.— Need for Speed (@NeedforSpeed) May 28, 2015
EA has yet to detail much of the game, although we do know that there will be five "ways to play" i.e: Speed, Style, Build, Crew and Outlaw.
A release date is currently unknown, though rumours peg the game down for a November release.