I’ll concern myself with future Barr investigations after he actually completes one.
Barr’s investigations in progress may all end abruptly on Nov 3rd and he would be just fine with that. Press could lamplight that all political investigations cease until the next attorney general has a chance to review for legitimacy then the DOJ Obamabots could put their feet up and relax. Durham is probably tied up somewhere by ex (or current) members of “The Intelligence Community” on a slow drip of their choice to numb the pain of reality now that he knows too much.