Yes this is a post for a trailer. But be warned. There are massive spoilers for Avengers: Endgame.Source: MashableYeah, the trailer even begins with spoiler warning from Tom Holland.So, the Avengers avenged us all. The snap was reversed. But at the cost of Iron Man.And as expected, this movie has Peter Parker dealing with life without the guidance of Tony Stark.But that isn't the biggest reveal in the trailer. We finally get Mysterio's origin. Yep, the MCU have gone and done it. We now have a multiverse.Besides the fact that this offers a good explanation behind where Mysterio came from, this also offers whole new possibilities for stories going ahead. Anyway, I won't keep you. Here's the trailer.