...
Accuweather is saying this is what we can potentially expect on Tuesday/Wednesday-ish:

But, of course, since this is New England and there's that great whacking ocean over there, a caveat: "However, a wobble in the storm's track by 50 miles could mean the difference between nuisance snowfall or a paralyzing snowstorm."
( Edit, Sunday 7:45 p.m.: And now, the map is even uglier... )