I don't know what is confirmed since I haven't followed closely, but if they do go out on a "Maiden England 2.0"-tour, they really should skip out on a few songs they've been playing over and over the last 10 years.
Yeah I know people will scream "CLASSICS!" but this is Maiden we're talking about. Even if they don't play Run to the Hills, Number of the Beast, Fear of the Dark or Hallowed Be Thy Name, there are still plenty of golden songs to choose from. I don't think people will be disappointed if they bring out something unexpected instead of those songs. The Prisoner, Children of the Damned, Flight of Icarus (which is considered a classic by itself), To Tame a Land, or anything.
I know fans want to hear a few "classics", but my point is that Maiden has such a solid discography (especially the classics) and they could fill out those songs they always play with something just as good.