I actually hope the hacker has the emails. I also hope that they are all 100% leaked to the public.
The only reason for Hillary to have her own email server was to try and protect those emails from legal disclosure. Seriously in today's day and age why would you bother with your own mail server? It costs far more and you get far less service than going with the big guys while simultaneously increasing risk in case of problems -- such as a drive failure.
The Clinton's have shown that they love the power, they just don't want to play by the same rules they expect everyone else to. Which, now that I think about it, pretty much sums up every US President in recent memory.
So, release the emails so we can all forget about this and get on with the process of electing the absolute worst person to the job of leader of the free world.