TheEsk has suggested that our new dockland stadium will have an initial capacity of 60,000, like West Ham's new stadium, and I think that's about right.
I know that some are concerned that we would be unable to fill a stadium with a capacity of 60,000 or more (not that having a couple of thousand empty seats would be detrimental to us in any way), but a move to a new stadium almost always increases a club's attendances massively. When Arsenal played at Highbury they almost never got capacity attendances and Highbury only held 39,000 people. Conversely, the Emirates, a stadium with a capacity of 60,000, is almost always full. And West Ham's average attendance has shot up by over 20,000 since their move to the Olympic Stadium. Fans are much more likely to want to watch their team in a state-of-the-art stadium than in a decrepit stadium that is riddled with obstructed views, like Goodison.