Na I doubt Trunks will die, he fights both Black and Zamasu on his own in the next episode or two and survives. Bulma will die imo, no other reason for her to go to the future other than to die again. Vegeta will lose his shit..did you see how strong he got when Beerus slapped Bulma? Imagine him if she dies haha.
Beerus isn't close to the strongest. We know of atleast 6 that are stronger than him, probs more ontop of that. Whis is stronger than Beerus and he said that he wasn't fit to even reach the feet of the 5th strongest fighter lol.