Six months ago, I sponsored my wife and 2 kids and their dependant visas have been granted and activated through the Macau route. We went back to Canada where we live to quit our jobs, sell our house, and prepare our move to HK but this process have taken much longer than expected. My question is that, is this a big problem with immigration when it comes time to apply for the extension of stay since we all have been out of HK for a year?

Thanks

Peter