What can you offer over all the other out of work traders? You have no experience in Asian currencies, and frankly Canadian desks are not that big in most banks. Of the major Canadian banks, maybe CIBC and BNS have a bit of business here in Asia, but in Singapore not HK.
As for your husband being out of work - may he can come over first to test the waters. But with two small kids, I am not sure that is a good idea. With your good job in Canada, i would not risk that right now. He should continue to look for something in Canada. Is your husband Chinese, speak Mando, read write Chinese?