I am considering migrating to the Gateway system, but noticed on the Arris s website that there are two models listed: Gateway 5, and Gateway 6. Which model is Shaw providing, and if currently model 5, when will model 6 be available? Will the model 6 come with a 1 TB internal HD option as indicated on the Arris website? Why are there not any NEW expanders available, only reconditioned 1TB ones? Is Shaw expecting newer higher capacity expanders (2 TB or higher) available soon?