Was already stated a few weeks ago that Brennan was not the subject of the Durham investigation.
John Brennan not a target of prosecutors in John Durham investigation: Report
https://www.washingtonexaminer.com/news/john-brennan-not-a-target-of-prosecutors-in-john-durham-investigation-report
This said there are several other investigations..remember John Bash?
AG Bill Barr Outlines the Scope of USAO John Bash “Unmasking” Investigation
https://theconservativetreehouse.com/2020/07/28/ag-bill-barr-outlines-the-scope-of-usao-john-bash-unmasking-investigation/
Don't sweat it guys this is not over, it's just begun!