It will not take another 60 months to add your family to your application and you must do it because if you go ahead and land in Canada without adding them, it will be seen as misrepresentation, you will not be able to sponsor them and if you try, which will bring CIC's attention to your misrepresentation, you may even be deported and lose your PR yourself.
If you had listed them in your application but as non-accompanying family members, then it doesn't matter whether you add them as accompanying or whether you sponsor them later but adding them will probably take less time.
[/quote
Maybe i will include them right now than to sponsor them later after i landed Canada. My co-employee who flew last Jan 19 to Alberta(family status) advised me to reiterate my application and declare my wife and children as accompanying family member...i just dont know how.