Hi MenicMonday,
sorry to say my dear but you got it wrong,you judged it from the name which is totally incorrect.
if you want to get an idea try to surf through the immigration websites of new zeland and australia to have a clear image about how this works becauseexpress entry is exactly the expression of interest just a different name and canadian immigration officials have declarerd many times that is a model similar to which is already in place in other countries.
the only people who will be pushed to the front of the line are the ones with provincial nominations and valid job offers from canadian employers (when i said valid job offers i meant arranged employment supported by a positive LMIA obtained from service canada to employ a candidate on a full time permanent basis once granted pr).
having worked in canada or currently working in canada will not give you a high privilege because you will be competed against very highly skilled workers from all over the globe so unless you have a very specific skills your chances to be invited to apply for pr are at the mercy of three bodies(cic,provincial and territorial governments,employers).
one last word about this topic is:when the government first brought this idea idea it clearly says that it will AFFECT applicants under CEC,FSW and FST so think about the word affect and if you think it will be as easy as now a days or even easier you are wrong,you will come back once its implemented in january and take your hat off for me lol.
my two cents to everyone:if you can apply before january 2015 and the cap is still open,do not take a second chance,do it right away or you will regret for the rest of your life.
best of luck to everyone.