will there be any IEM recordings for any shows released for this tour? if so, any idea on which shows it'll be?

Give it time. Chances are if someone did manage to capture an IEM, they sold it off to a label like DAC or Xavel. If this is what's happening, they probably are holding on to the mix for a while until all audience recordings are released. I'd say wait a few more months. If a major label does have these, they may even release them in time for the holidays.

I don't even have any proof as to whether IEMs exist for this tour or not, I'm just trying to explain what might be going on if there are any.

There were no IEM recordings from the 2014 european tour so I wouldn't expect any to show up but one can always hope.

Hate to be a buzz kill but I doubt it as well. For instance there was a lot of hype about U2 having lots of IEM's even before they materialized. Of course we now see them. Although I am hopeful there will be an official release of this tour. There were audience mics at some shows at least. Fingers crossed!