Mueller won't be finished until all the little Trumpies are indicted and Kushner is arrested. He hasn't even started with Stone and Corsi, the National enquierer, Duesche Bank, and the House just handed off the official transcripts of hearing that are likely to bring down lots of Republicans.

Given all the unfinished business, and he held his grand jury for an additional 6 months, Mueller has a lot more work to do. Perhaps he will issue some interim summary report in the mean time.