There are many reports out there at the moment, written by many consultants. It may seem to be doom and gloom, but planning issues always slow things down. There are ways of sorting these issues out. Southend has massive potential in the short and long term.
Look at the EEDA, Thames Gateway, London 2012,
http://www.investinsouthend.co.uk, Read the Rochford Councils website etc. etc.
I wouldn't get too down hearted just yet.