A good start, but I think there should still be some more consolidation. Keewatin and Ungava would be practically empty, and Franklin nearly entirely empty.
These areas are probably going to permanently be territories. The US would divide territories according to where there might eventually be a state. I think the US would be more likely to have multiple territories that don't have the population for statehood than 1 massive state. Keewatin and Ungava would probably always be sparsely populated territories that the US would most likely ignore, filled with loggers, sealers and self-styled pioneers. Franklin in the modern day and near future would likely be a home to multitudes of military bases as the US tries to secure ownership over the Arctic. Interestingly, Ungava might be designated as a Nunavut substitute.