This is what it comes down to for me. I'm really excited for some new Bruce but I think the jury is still out in a lot of ways. Tyranny of Souls was a good album but it had side project written all over it. Production/recording style, lack of a coherent theme, no Adrian, and the amount of filler all resulted in quite a different experience compared to AOB/Chemical Wedding. Maiden is still the main project, so I question how much care and dedication went into this project compared to when he was fully solo.
Despite all the whining around here about Bruce taking a long time to finish the album, I think it's actually a pretty good sign that Bruce took his time with it. Instead of quickly putting something together while Maiden was on a break, it seems like he's been slowly crafting something. Also. If Eternity Should Fail is one of the best Maiden songs in recent years and better than anything on Tyranny of Souls, if it's an indication of the new album's quality then we're in for a treat.
So I'm cautiously optimistic about the new album. With that being said, the only recent Maiden album that I find Tyranny of Souls to be stronger than is Dance of Death (and even then they're pretty close to on par with each other). Senjutsu could crack my top 5 Maiden albums and Book of Souls was a really solid effort as well, so obviously I don't see them as being nearly as creatively bankrupt as others here do. If Iron Maiden announced a new album tomorrow, I would be more excited about it.