Thanks for the input. As long as end of round war isn't between alliance mates to help raise alliance casualties to win that war, then you are right XP doesn't matter in TE as far as the ruling about war slot / XP farming states,
The only thing that would relate to TE in that rule would be normal war slot filling between alliance mates or allies of the nation whose slot is filled. XP would still have to be disabled between alliance mates during the most part of the round for alliance war games due to benefits the XP would give you later on fighting a real enemy, however, end of round it would be allowed.
Yes, casualty farming is war slot filling per se, since it helps win an award, on alliance mates is not acceptable.
Does that make better sense?