Combined population of the 6 states of New England is 14,444,865 in the 2010 census. That would make it one of the more substantially populated states, but still far less than Florida, Texas, and California, which have 2 senators each.
[of course I know there is zero chance of this happening, but it is fun to think about]
I dream about this also, except I dream that the rest of the country expels them, to sink or swim on their own. Id give them downstate New York as well. California I would do the same as well except I would keep North Kali as its own state. That would substantially solve our Libtard problem for the foreseeable future. Please note Visas would be required for any of the citizens of these new countries to enter the US. Failure to have a visa, Camp Gitmo for you.