matic22
Ancient Mariner
Most likely IMO.
Children of The Damned -> Brave New World
Tears of a Clown -> Wrathchild or 2MTM
Blood Brothers -> The Evil That Men Do
Wasted Years -> Run to the Hills
Dropping TRATB is also possible, but I don't think they'll do it. If they did it would be Dance of Death.
Blood Brothers won't be replaced, since it is in the tour ad. The only songs that are missing from the 2016 set are COTD, TOAC, TRATB, IM and WY. IM is always played and I doubt they will replace TRATB. And also Bruce can't sing RTTH at the end of a set anymore (check TFF tour rehearsals (2011), they intended to close with it, but it was replaced by Running Free during rehearsals). TRATB would only be dropped in case of vocal issues and replaced by 2 relatively short songs or something like DOD with Wrathchild added.