In an interview with The Quietus, Steve Harris talks about lots of things including the longevity of Iron Maiden.

Steve doesn’t seem to think another ten years is very likely, but he does say they should probably have another five left in them. That fits kinda neatly with the speculation a lot of fans are prone to these days: Another record after the Maiden England tour, and then whatever they feel like as an end game. In the interview, Steve also talks about a lot of other things, including British Lion and the early days of Iron Maiden.