It would have been really really unlikely for Trump to win.
Hilary had more experience, she had more money, she had more contacts and supporters, she inherited Obama's well built electorial machine on top of her own contacts. You would litterally need a perfect storm of events to happen for her not to win. I mean Trump was the single best match up she was going to possibly get.
That said if she loses? She's done for politically for life. Losing a fight like that means that your politically irrevelevant. That said if by some twist of fate she loses? The country's current political gridlock is over with. Because I honestly do not think that the freedom congress would continue to fight the establishment republicans under a republican president.
Because honestly that would be crazy.