The PlayStation Blog has come out with a rather useful list of PlayStation 4 games announced for release this year, viewable here. A terrific resource for current console owners and prospective PS4 players alike, to be sure. Consider bookmarking it.
Everything listed is subject to change as titles get announced and existing ones get delayed, but Sony says it'll keep its list "updated all year long with the necessary adjustments."
PS4 Games in 2014: The Ultimate List [PlayStation Blog]