When you are told an update is a 'big one', dont expect another for a month. We are talking maps here.
You get anything short of a month, it wont be a map. Maybe a shovel or something.
And it would mean, the map wasnt done in time for the next update.
And map udates are your surest bet to being sure of a close release.
So Yer... Do the time, will ya. Let's get that map ;-)