Has there been any thought into wagering items/coins in player battles to be implemented in the game in the future. Currently there's not much benefit to battling other players as the XP rate is very low and still time worthy if lots of revives/potions are used.
Wagering in battles will not be very useful considering that nobody has any pokecoins to wager. Although it would be great for the exp to be raised depending on the level of the opponent you defeat. It would also be a good idea for the winner to earn a reward in the end so pokecoins will be more used instead of pokestops.
You have to look at this in an Abuser type way - People would be able to boost of others to gain these rewards. It would take time, but yes - it would be possible. Yes I know Player battles do not offer much - but for now that's all we have. Maybe in the future that will change, for now it's just for fun