Active PS Plus subscribers have been offered at least two games each for PS4, PS3 and PS Vita. This will no longer be the case starting March 2019.
The lineup for free PS Plus games (for active subscribers) will only include the usual two PS4 games moving forward. Previous games available as part of PS Plus and redeemed will still be available for download later on.
This may or may not apply to Asia accounts. Playstation Plus Asia has been offering a different lineup than the normal NA and EU counterparts. For instance, Ratchet And Clank (2016), which is being offered for March in NA and EU, has been offered back in December last year. Asia also did not get a price hike for PS Plus.
We will update back when we hear any word from Playstation Asia.