Falling off the rail network
I think the biggest cause for concern for Liverpool in the coming years is the proposed high speed rail network.
All the proposals I have seen talk about new lines connecting Birmingham with Manchester and Leeds, then northwards on to Newcastle and Scotland.
Liverpool is not being mentioned, even when a cross country link is discussed, this would start at Manchester and cross the pennines through to Leeds.
It surlely is the beginning of the end for any city when it gets cut off from the rest of the country.