Replaying Arena Defenses

I used to play a game called Rival Kingdoms and while I wasn't a huge fan of the game they recorded recent(like last few days) Pvp battles so you could watch and strategize accordingly. Right now I feel like I have a strong arena team but I'm not sure how they stack up defensively plus I just think that it'd be entertaining to watch. I think it'd cool if the devs added this feature and I know I would use it often.