Every one of those scenarios is valid.
We live in a liberal culture and that favors Hillary as reflected in the polls.
Maybe some major event or a strong Trump showing in the debates will move the numbers his way.
Right now everything tells us Hillary is our next Prez.
Sure you don’t like the polls and none of us do but that is where things stand at the moment.
And for all intents and purposes Hillary is the incumbent.
There is a reason this. The incumbent is a KNOWN quantity. People have already made up their minds about them.
Ignore the fact that this is Hillary vs Trump, and pretend instead this is an incumbent who is polling in the low 40’s running against a relative unknown who is polling in the high 30’s with no credible 3rd party candidate 2 months out from election day with all the debates still to come.
History shows that an incumbent in such a position usually loses. Because people have already made up their mind about them.