Rare has always been pretty good about following up on cheating reports, and with EAC coming, its evident that they're taking the matter even more seriously.
In the recent news video, it was mentioned that EAC was only the start. So, I'm not sure if they're already working on something like this in the background, but I'll go ahead and pitch the idea anyway.
During my hiatus from SoT, I've been playing CoD on my free time. And while, yes, SoT is its own unique game, and yes, we don't have to copy everything from other games, sometimes it's okay to borrow and innovate concepts rather than reinventing ones from scratch (see: the wheel).
This idea comes from CoD's "Kill Cam." For those of you who are familiar with this, feel free to skip to the next paragraph. For those who aren't, a Kill Cam is essentially a video clip played upon your death in a match, showing the opponent's POV, so you could see how they killed you. Not only does this help you make more informed decisions after you respawn, it also helps the reporting process. In the Kill Cam, a tag (labeled, "You") displays over your character model when you are behind a wall, making it easier to see if your opponent was tracking you through walls, with wall-hacks or ESP cheats, or if they genuinely just outskilled you.
Mirror of Fate
On the Ferry, Rare could add a new object to do something similar to CoD's Kill Cam. A magic mirror which could be interacted with. At which point, the player is able to see (full screen) the last 10-30 seconds of the POV of the player or NPC that killed them.
Some type of "you" tag could also be added to show your position behind walls, or at long distances, in order to show if you were being tracked by a player through 3rd-party means.
Rare has always, rightfully, insisted on users sending clips with reports, and this would aid in that clipping-reporting process. It may even reduce the number of invalid reports, as users would be able to judge on their own, if a report is even worth sending.
Now, this would remove some amount of stealth in stealth plays. But not much more than a player grabbing a pink flame after their death, realizing a player was responsible. And I think the benefit of gaining evidence to justify reports is worth that small cost.
At most, if one hasn't already fled the scene or went "loud," a stealth player would just have to pick a new hiding spot after killing an opponent lol.
Would this eliminate all cheating? No. Will EAC eliminate all cheating? No. Would we still have closet cheaters? Unfortunately, yes. However, this would help eliminate some of them, especially the more obvious ones, or ones that may slip up.
I'll also add that I have 0 background in game development, IT, or anything related. I just push buttons, touch screens, and things happen. So I have no clue as to what sort of technical hurdles this would create, or if the servers would even be able to handle something like this.
But if it is possible, I think it would benefit the playerbase as well as the Rare employees that have to sift through all the "sus" and cheat reports thrown their way.