I think the goal for Mueller and the FBI will be to haul in a whole bunch of people in a single go, to try and make it impossible for the pardon to happen - there will simply be too much information about too many people, and you can’t fight it off story by story because it’s simply too extreme and provable.
I think they need to find all of the congressmen who were accepting information from Russia. For that, they need to confirm information from Butina, which will probably take about 6 months.
Trump Jr. is probably already toast.
Kushner may be clean, he may be dirty with the Saudis, it’s not clear. I suspect that they have the information to make that determination, but how much of it they want to use in court, because it would reveal sources and means is hard to say. If they’re not willing to use that information in court, then I think they would need Eric Prince and George Nader cooperating. Nader has fled the country and there’s been no indication that Prince is being targeted.
Kushner may have lied about the Veselnitskaya meeting, saying that he realized it was a big nothing and decided to skip it in that basis. My guess would be that he went in not really thinking about anything then realized that the discussion was criminal and hauled ass out of there. Overall the lie is small and hard to prove, minus a recording of the meeting. At most he’s probably guilty for failure to report crimes.
Ivanka might be in danger on the inauguration. But, if so, probably not on anything big. I suspect that she’s kept buffered from most criminal conversations. She may have done something criminal on her own, but that would be a whole different investigation than everything else, so if it only started a few months ago, she’s probably safe for a year.
To get Trump on Russia, you need to know that he knew. Cohen tells us that Trump knew a few things, but most of the mega-bad would require Manafort to have given up the details. Gates probably only has some ancillary hints about what Trump knew. With Stone maybe you get enough, if you can flip him. That’s still probably a minimum of 6 months off.
To get Trump on Israel and Saudi Arabia, you are in the same situation as you are with Kushner.
So probably my expectation would be that around mid-January, Eric Prince will be hauled in and it will take 6+ months to try and flip him. Right now, I suspect that they’re busy pulling sources out of the Middle East and doing all of the other prep work to blow their sources, so they can take Prince to trial. Hopefully around the same time you’ll get Stone. But I suspect that Prince will tell everything and Stone will play the Manafort game and commit to being a useless liar.
Outside of a bright ray of sunshine in mid-January, I think we’re going to still have until late summer before the dam goes.
But then, one day, the FBI will sweep through DC, pick up a half dozen congressmen, Junior, and Kushner and parade them through the street in their way to Federal custody.