Senjutsu and Stratego will FOR SURE be played. Writing, definitely.
I can see The Parchment being played live for sure, Bruce and Nicko recently talked about playing it (Nicko in particular seems really eager to- remember, he's the reason they played Tears of a Clown on the first two legs of TBOS to begin with). Hell on Earth, that would be killer.
I honestly just don't see DOFP or Lost. Considering as many people mentioned they skipped The Pilgrim on the A Matter of The Beast, and The Alchemist wasn't performed on TFF, and Tears got replaced with a longer song on TBOS, I think it's clear they favour playing the longer tunes over anything.
Death of the Celts is a hard maybe. I could see the audience getting bored during it though, and of the songs on the album it's definitely the one that feels every second of its length. The Time Machine is also a hard maybe. And I also just don't see Darkest Hour at at all. It would feel very much like a dead space in a set already full of long songs, it being a power ballad and all.
Now that I've gotten that off my chest, here's a hypothetical set with that in mind:
Intro
1. Senjutsu
2. Stratego
3. Classic or older song
4. The Writing on the Wall
5. The Parchment
6. Classic or older song
7. Classic or older aong
8. Classic or older song
9. The Time Machine
10. Hell on Earth
11. Classic or older song
12. Classic or older song
13. Fear of the Dark
14. Iron Maiden
15-17... you already know lol