There's no word on how much space beer Samuel Adams plans to produce. However, according to Popular Mechanics, a pound of hops will yield about eight gallons of beer. Samuel Adams is getting 66 pounds of hops from space. So, if they solely use those hops for their new brew, they'll only produce 528 gallons.
For every 1 gallon (3.8 L) of space you have in your mashing vessel, you can mash 2.0 lbs. (0.91 kg) of grain and collect about 1 gallon (3.8 L) of wort at around 12 °Plato (SG 1.048).
Using ⅛ oz of hops for dry hopping 1 quart of beer is the equivalent of ½ oz of dry hopping per gallon, or 2.5 oz per 5 gallon batch, which is a pretty decent hopping rate.
A good rule of thumb for dry hopping 5 gallons (19 L) of American pale ale is to use between 0.5–1.5 oz. (14–42 g) of hops. For IPAs, use 1.5–2.5 oz. (42–71 g) and for dIPAs, 2.0–5.0 oz.