Hello!Perhaps I am misunderstanding your question? Do you mean you want to apply (and include your family in your application), but only you would come to Canada and get established? This is possible. BUT, your family would have to come before the medicals expire in one year, or passport expiry, which ever comes first. If they do not come to Canada by that time, you would have to go through sponsorship of them. Hope this makes sense.
Friend is that pasible to declare spouse and kids at the time of application and coming only self alone untill establish d to bring family at canada. But, there is another issue of fund declartion about $26000 is required to bring canada is that possible do not bring that money untill i will bring family afte establish ?