Is there something in the game that remembers the history between two workers without there being a current feud that can add heat to a match?
Example... Bret vs. Shawn (going full on "cher" with this one). They would have feuds against one another.. move on to other opponents, but seemingly have this "underline" feud going on. So much so that whenever they are in the same match (tag, six ways...etc) or angle, that heat is still there from their feud.
A feature like this would be nice to add a bit of heat to matches between wrestlers that technically aren't "feuding".
Another suggestion is a feature called "What the Fans Want" or "Fantasy Booking". Could be a section that shows you the "dream" matches that fans want to see either in one company, or from all the workers in the game world.