I would suggest three ‘end-games’:
1. In their mind, something has to tie Trump into the planning/execution process, thus bringing up serious charges against him. Odds of this? Remarkably low.
2. Driving reason for a massive increase in the capital police.
3. Building a massive plan for January 2025 where another 6-Jan-like event will occur.
The problem here...once you say this was a serious event, but people were only armed with flagpoles, backpacks, and water bottles...no one takes you serious.
By my timeline, many Presidential memos and phone logs will be released to the committee by the National Archives, sometime around New Years Day, and they will have a field day. Unless of course there is a last-minute challenge of the DC Appeals Court upholding the DC District Court, made to the Supremes, that he has to turn those over. I suspect a last minute filing in the next week or so. Thousands of pages and stuff. It will have to go to the USSC. From there I would surmise he has a 2 in 10 chance of prevailing. Depending on how quickly they act, or if they do not reject outright, it would seem like the revised timeline for those to be given to Congress around February or so. If there is incriminating stuff in there, they will have it on him and boy oh boy Katy bar the doors, we are then into Criminal Referral territory to Justice Dept.