Sony just announced which games will be free for Playstation Plus members during March 2018.
Bloodborne – PS4
Ratchet & Clank – PS4
Legend of Kay – PS3
Mighty No. 9 – PS3 (cross buy with PS4)
Claire: Extended Cut – Vita (cross buy with PS4)
Bombing Busters – Vita (cross buy with PS4)
Also, starting March 13 and lasting until April 10, the Dungeon Defenders PS Plus Pack will be available for free. This pack contains 4 Shadow Costumes, 1 Million gold, 5 campaign shard packs, 5 defender packs, and a Ninja Gato Pet.
Finally, and most unfortunately but inevitable, Sony will no longer have free PS3 and Vita games for PS+ members starting in March 2019. This will not affect any PS3 or Vita games you already downloaded. These games will still be apart of your PS+ account. Sony is just cutting off those two systems, focusing solely on their PS4 system. Exclusive discounts will still be available.