The time is always in October. He has been very close to the Romney campaign, and Trump has done several fundraisers with Romney. I really don't think this is being done without Romney's approval. In fact, this info might have come from the Romney campaign itself.
In the last debate, I caught a glimpse on what I thought was a look of pity on Romney's part as he watched Obama speaking.
Maybe Romney knew what was coming up and that it would devastate Obama campaign, if not Obama himself.
Some have felt Romney held back some during the debate when he did not bust Obama's chops over Libya.
Maybe he knew these emails were about to be dropped by Trump, or someone else, as part of an October surprise and that Obama campaign would inplode without Romney having to do a thing.
If the Romney campaign had anything of substance, they would have released it themselves. They would never, ever give it to someone like Donald Trump, who is not taken seriously by anyone who is sane. I hope everyone just ignores this crap. And Donald crawls back into his hole. I hope Romney and Obama never even acknowledge this. Rise above it.