For now, is very plausible that an attack of this type happens. The conflicts between Israel and Hamas, which is considered an Iranian proxy militia, the hostilities against Hezbollah, another Iranian proxy (perhaps one of the most important), and Houthi group's actions or from other rebel group are capable reasons to ignite another scalation of conflicts between Israel and Iran that could ignite an episode like this.
Recently the world saw how an attack against members of the Revolutionary Guard Corp from Iran developed unprecedent attacks against Israeli soil by Iran, as well as serious attacks Israelis against Iranian targets. Moreover, is more than proved that Israel can perform an attack against the Persian nation, and how Iran can respond this kind of provocation through limited sources. So, in the desperate Netanyahu's behavior to prolong the war to maintain himself on power, another attack of this type can happen at any time to remain the ongoing scenario of fear that just benefits him.
It is more than clear that Maduro will remain on power, even despite the sanctions and international reprimand. He already comes paying this price for more than five years as well as no actor in the country shows sufficient power to ignite a social uprising against him. Moreover, democratically any candidate will not impose a defeat to Maduro, due his repression and manipulation of electoral system, and will not happen an international intervention in the country.
Therefore, if through elections no one will take out Maduro from presidency, by uprising is not likely. The opposition that has capacity to do this already was stigmatized, the Venezuelan army is in favor of Maduro, and, unfortunately, the Venezuelan people will remain live under economic sanctions imposed by the United States and other Western countries due Maduro drive of electoral process.