Next event is Murkmire Celebration as noted in previous Patch Notes. You can see that the Voriplasm pet will be a reward for the event. After which there will be one more event for the current Indrik cycle which is equally likely to be a Morrowind Celebration, Summerset Celebration, or Clockwork City Celebration. The latter two have not occurred in over a year so their chances are greater. Regardless said events aren’t likely to occur until after the new DLC releases as there has not been a PTS test of said events yet.