Will the next storm be a hit or a miss on Sunday and Monday?

Nobody seems to know.  Snow or rain, daytime or night time all must be factored in and there is still much uncertainty.  The models are trending to a more snow set up but very tenuously.

From Mt. Holly, NWS discussion:

" We basically are forecasting advisory level snowfall northwest of 
the I-95 corridor (where p-type is forecast to stay snow through the 
event) and and inch or less from the I-95 corridor south (where 
p-type may start as and end as snow). This preserves continuity and 
has a basis in the models we think are closest to the correct 
solution. The event starts on Sunday night and ends on Monday night. 
Winds on land will start to pick up on Monday as the secondary low 
strengthens off the coast, but we aren't expecting land advisory 
winds. Regarding temperatures, we have gone with a 
guidance/continuity blend on Sunday, Sunday night and Monday night, 
but have gone colder on Monday as we will be under the brunt of the 
complex system by then. "

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If nature conspires to produce all snow, some areas could see a foot.