The press largely ignored the Wikileaks revelations. As such, they don't seem to have had much effect. Most of those who would care don't actually know what they say.
They may have had a tactical effect in that NBC released the pussy groping tape earlier than it should have for maximum effect. But that may have been intended all along. Note that the timing allowed for Donald Trump to be questioned about it in the debate. It was the many accusers refuting his debate claim that really exploded that particular scandal.
Trump won roughly what a generic Republican candidate would have won except that he did better in states like Wisconsin, Michigan, and Pennsylvania and worse in states like Nevada, New Mexico, and Colorado. This seems to have more to do with his message than the leaks. Those would seem to hit Hillary Clinton hardest in more liberal areas like Chicago and New York City. He did best in states with the lowest impressions of trade deals.
I'd be interested in seeing a poll about how many people who voted actually knew about specific Wikileaks revelations. I suspect that it is small and mostly among partisans (people whose vote was determined much earlier). Most of the coverage has concentrated more on "Russians tampering with our elections!" than the leaks themselves.
The biggest reason that Clinton lost was that she was a horrible candidate. Constant ethics problems, a voice that didn't rally well (she was at her best in the debates, where the volume is much lower), and a persistent inability to connect with everyday Americans. She had great name identification and a famous name. But she ran as an insider in a year that favored outsiders.
She lost to Trump for the same reasons she lost to Barack Obama. When you get right down to it, she's just not that inspiring. Trump's message of putting America first resonated better than her message of, well, not being Trump. It's noteworthy that her signature catchphrase, "Stronger Together," was a response to Trump saying "I alone" in one of his speeches. She defined herself in contrast to him.
I also think that she has the problem of being the last white Democrat to run for president. Her inability to get blacks to vote for her is likely to lead to future candidates who are better suited to rally the minority vote. Eventually that might be Hispanics, but in the near term, expect more black candidates. And expect a more thorough vetting of ethical issues. If Sanders had answered her calls for examples of her corruption the way that Trump did, he might well have been the nominee. Rigged primaries or no rigged primaries.