Personally, I have a feeling that Maduro will make it to the end of the year.
PredictIt odds are hovering at 50/50. Worse than 70% a month ago, but better than the 30% they gave this January. The main development since January has been a collapse of oil production, but there is good reason to think that some of the lost output has merely been shifted off the books to Rosneft in conntection with US sanctions.
I am not going to comment much further, since I am in no way shape or form a Venezuela expert.