If it is true (and it all but certainly is) that Putin doing these things to sow dissension and domestic terrorism in the US, then the end game would appear to be clear. And if it is true (and I am certain this is) that Putin wants a return to Soviet-style Russia and a larger hegemony over this earth, than he is playing a long game for exactly that. And much damage has been done already, here and abroad; and, yes, it will take years to correct even in a best case scenario.
There is some room for optimism, though. If the good guys win in 8 days, they might be serious about holding Putin accountable, about not sucking him off because reasons. It is probably better than 50/50 that the Americans retake the White House and Senate (and add to the House lead). That would give a much better chance of fixing things sooner than too much later. And Putin, a real life James Bond villain, is not a young man. He will not live forever.