Even if they COULD get Brennen, Clapper and Comey to implicate Obama or Hillary, I don’t think lawyers would succeed at getting any legal conviction of Obama or Hillary. Any criminal violations for election campaign interference or election finance law runs out 2026 - next year. There are some civil violations that have a 15 year limit, but that would mean additional lengthy civil suit trials. I just don;t see it.
I think making the findings very big in some very big way - a special presidential address to Congress, may be all we will get.
The statute of limitiations had expired on E. Jean Carroll's rape accusations decades before the legislature passed a temporary ex post facto bill of attainder to target Trump with her accusation for which there was no police report, witnesses or even year of occurence.
If they can do it...
If it’s a seditious conspiracy (and it most definitely is) then the statute of limitations starts anew with each new act to further the conspiracy. Every time one of these crooks lies to cover up the conspiracy it extends the time allowable to prosecute it.