Well I think they might change TOAC for WTRRD now.
I was thinking The Great Unknown might replace something, since IIRC in 2015 Adrian commented on it potentially getting played live (I wanna say it was something like "dreading it a bit" because of the weird tuning on the acoustic guitar). It'd be a pretty strange and un-Maiden move to bring in a new song from the album on the second year of touring behind it, but we live in strange times!
For clarification, he was speaking in answer to being asked if they would play any other TBOS material, he didn't bring it up himself. However, the fact that they've published the interview, including that comment, at this stage, does make me wonder if it's a hint!