Trunks was a massive let down...the previews made it sound like he was going to be fighting most the episode lol. I guess he just had a massive rage boost and transformed into an ascended SSJ2 while gaining access go God Ki without having the ability to control it so the God Ki was leaking like crazy...fuck knows how he got access to God Ki though.
I rekon i know what is going to happen..Vegeta is going to fight black and get ontop of him while Goku seals Zamasu. Black or Zamasu will then switch their Potara earring onto the other ear forcing a fusion and drawing Zamasu towards Black and freeing him from the seal. Then we will have some crazy strong Blamasu **** that Goku won't be able to seal and no one will be able to fight. Then Gowasu will go to the future after talking to Beerus to try and settle things but he will see this Blamasu **** and be like naa fuck this. He will the give his Potara earrings to Goku and Vegeta as they will be left with no other option but to fuse into Vegito.