The Goku Black Time travel.

Present Zamasu was killed by Beerus when Whis reversed time, but if Whis hadn't reversed time everything would have played out the same correct?

Zamasu would steal Goku's body and go to Trunk's time period because Beerus is dead there.

So if you had a time ring and travelled to the future BEFORE Whis could reverse time. You would see Zamasu become Black right? That was the set in stone history.

Whis reversed time, (Remember that Whis doesn't create new time lines, he reverses the flow of time) and changed the future of what should happen

Beerus kills Zamasu and the loop should end, but the time ring prevents Black from being affected by the changes in the past.

Black created himself and stole the body of Goku who had already fought Hit, am I right or wrong?

That is the manner that I have understood it as well. Of course, if, for example, Trunks cuts off the finger with the time ring, Black might cease to exist.

^I believe you just spoiled how Black is going to die, or how the possible fusion will die.

Wow no spoilers alert warning ant

Sorry about that then.

well it's a hypotatical so it might not be true and cutting the ring finger seems underwhelming so I don't really think Ant spoiled but just thought of a way eh we'll see