They have lots of big games in development: Spiderman, God of War, Detroit, Dreams, Days Gone, GT Sport... And they still have unannounced projects (and FF7R, Shenmue, Dragon Quest 11, Ni no Kuni 2...).
At least a part of these games will release in 2017, the others should be 2018, so Sony have quite a bit of choice here... We'll know more at E3, and we'll have more than enough games to play until then ^^.