Just a thought, the cost of filling in the dock area would be huge - could it be used instead as an underground car park (still a major cost but could bring savings and help with congestion etc). Would probably also make it more attractive as a venue for concerts and other stuff.
it'd probably be even more work to do that (and cost) than just chuck a load of rubble into it (I'm being simplistic on purpose there!)
Last year there was supposed to be land available just up the road at Walton Hall Park. Couldn't we extend Goodison, taking whatever size footprint we need to extend to for a full commercialized stadium (houses, schools & perhaps parkland) and then build the equivalent of what we take from around the current ground up at Walton Hall?
I know the thought of a waterfront stadium is pretty exciting in terms of image but we're going to have to buy a big chunk of land and build a whole new stadium and then be in debt to Mr. Moshiri & possibly others for a long long time to come.
it's the surrounding area that comes into play as well though. the surrounding area being seriously developed will bring money into the area which there will likely be a deal with the council for them to offset against the purchase of whatever land / planning applications there needs to be done. WHP was never a goer as the residents would always kick up a fuss, and would likely do the same with whatever needed to be built there.
the purchase of the land was quoted at around £30m which is tiny really in comparison to the whole cost of a new stadium and we'd likely "lose" £30m at least if redeveloping Goodison, sadly.