User blog comment:NgKQ/Adios, Veneno?/@comment-1731233-20150523034819/@comment-1731233-20150525032851

Furthermore, I realized what you are talking about now. I missed the S4 event because the stars didn't change (I still have 135/135 stars).

Both of these events will probably be fixed, so the Veneno is definitely coming back...in the next update.