potential pros:
- it punished the player who relies on just a couple of superior leaders (I imagine the better commanders tended to be close to the front where they could more accurately judge the situation and react to it), so it could create an interesting choice between deploying your best leader to solve a very tricky situation and being more sure of success, but also risking losing this leader because the situation is so difficult
- shakes up tactics and strategies because you are forced to adapt to potentially losing someone making your strategy work
cons:
- nobody thinks famous leaders randomly dying early is particularly fun, and its a hard hit to delivering historical flavor.
We've discussed it as a mechanic, but we are currently sceptical because it would either be lots of working on a mechanic you would almost never see happen, or be common enough that you are likely to see a lot of famous people getting picked off, watering down historical flavor and sad players restarting because they can't use and roleplay with their favourites.