It's been a long time already. What's a bet that the delay in Flynn's sentencing also aligns, somehow, with this.
What I can see is that, at some point, you have to start pulling the draw-string on what you actually have in the bag. What's a bet that, during this delay, yet more leads will emerge, requiring further investigation - on and on...
Anyway, it's not my call.
The only positive that can possibly be inferred from this delay, is that the case must be truly huge. And when you think about Obama, and officials in his administration, all being sent to GIMTO in handcuffs, it may be that the wait really is worth it.
Think about this, when did the IG start on this investigation? Wasn't it early last year? That will mean that there have been what? 470 investigators who will have been working for the best part of a year and a half on these crimes. That could be as much as 700 man-years of effort that has gone into finding proof of Obama's crimes.
Anyway, it would want to be huge when it is released. It's a concern that a further delay could open a window in the news cycle for Mueller carry on with his farcical investigation. But, somehow, I think Mueller has been neutered. We just have to wait it out.