Won't look anything like this, but as far as design elements go, I think this (and Camden Yards) is the right idea. A good mix of modern and historic. It needs to give nods both to the Leitch designs and to the architecture of Liverpool (as well as the nautical theme you mentioned). But it will certainly have a touch of modernity as well. It should also give good visuals to the outside. The City needs to be able to see the new stadium, and the new stadium needs to be able to glimpse the City, and the water, as well.