Revolver News recently exposed how the January 6 “Fedsurrection” was likely orchestrated by FBI informants and others, who deliberately led and funnelled the crowd into the Capitol, yet remain unprosecuted.
Their end game could be to convict Trump of violating the Insurrection Act and thus bar him from public “office”. There is debate on that among lawyers, since the presidency is not legally an “office”.
Legal hurdles seem unlikely to stop them. They did impeach Trump for something Biden actually did.