It seems Battlefield: Hardline won't be continuing its cops-and-robbers spree any further than next year, with EA CFO Blake Jorgensen announcing during the 2014 UBS Global Technology Conference that 2016 will see Battlefield return to the military roots of its long-running series (via GameSpot
This upcoming Battlefield release, which was announced last month, is shaping up to be a "fun, new Battlefield," said Jorgensen. "That will be a return to a Battlefield military-style game; more to come on that."
Battlefield: Hardline is EA's next core Battlefield title, and is scheduled for a March 2015 launch. There will not be a new Battlefield release for holiday 2015, however, with EA CEO Andrew Wilson previously stating "We want to give Battlefield 4 and Battlefield Hardline players more time to enjoy these games and immerse themselves in a game, the live service, and the community."
As was previously announced, the next major Battlefield game - the one after Battlefield Hardline - is slated for a release during the third quarter of EA's 2017 fiscal year. In calendar terms, that means Battlefield 5 (or whatever it may be called) will arrive sometime between October and December 2016, enough time for players to enjoy BF4 and Hardline.