Well, in terms of matches, you absolutely have to include the first Wargames so that could be a nice addition to the upgraded matches library. I don't remember seeing it in bad shape. For more matches, I'll have to look through my match lists and decide which ones are necessary.
As for the participants, I think JJ will rarely be mentioned at all. If they attack his character, I don't think it would serve a purpose. For Luger, they could always claim that the Horsemen lost their magic because he was so inexperienced, was difficult to work with, etc. You know, the Warrior burial job where all problems with the Horsemen begin and end with Luger being a member. However, this would be complete WWE revisionist bullshit history. The Horsemen died because Arn and Tully defected to the WWF where I am guessing Arn will come in and talk about how great it was to work in the Fed.
A