7. More Frontier
I got sort of sucked into Assassin's Creed's Frontier, much in the same way that I sort of got sucked into Red Dead Redemption's vast and beautiful open wilderness (albeit maybe not quite to the same extent). Now don't take this as me saying "there's not enough Frontier" - I'm simply saying that I, personally, would love to see some more. Hey, America is a big place. How about a DLC pack that adds a whole extra area of Frontier to the existing map, complete with a brand new wilderness-based campaign, possibly seeing Connor defending several Native America villages against the rolling progress of the British? Ideally, this extra area of Frontier and campaign would be available from the start of the original story, provided players had installed the DLC of course, simultaneously doubling the scale of the game for new players while giving returning players a valid excuse to dive back in. Sounds like value for money to me; I'd certainly have my virtual wallet ready for the day that one dropped.