I maintain that Hillary has significant dirt on Obama and has details of operations like what was actually going on a Benghazi (likely gun running to ISIS or parties just as bad) and other illegal operations. Obama can destroy Hillary but she can gravely wound Obama's legacy and his future as a power broker. It's a mexican standoff. Obama is letting the noose tighten around Hillary but he won't pull the lever.
My prediction: A back room deal will be worked out which keeps Obama in power behind the scenes in return for this case going away and Hillary being silent about everything she knows. For example, Obama selects Hillary's VP, Chief of Staff, and several cabinet officials is the sort of deal I suspect is being worked out.
Even if Hillary did have dirt on Obama, he has the full levers of Goverment power at his disposal. Unless Hillary is willing to do a LBJ on Kennedy or Vince Foster body count, she is toast.
There is very little you said I disagree with... but the trigger point will be when the connection is made between what Hitlery was doing at State and the donations that poured into that crooked foundation scam. Once that happens, TS will truly have HTF.... and none of the speculation will matter since you won't be able to see any Democrats for dust, particularly Odumbo. Since that whole relationship is what is really at the heart of the email scandal (amongst other things of course), that will be a giant workboot hitting the floor. During this same discussion this morning on Morning Joe, that point was solidly made by somebody who rather pointedly said "sure Hitlery may have done all this and was lying through her teeth all aloing.... but where on earth was the administration when all this was going on?