Even if it was 1080p, the game play looks like just another core AC game to me, which I was bored of after 3. Black flag's sailing kept AC4 fun but I hated getting off the ship and doing the annoying story missions. I also found the French revolution a boring subject in school, not eager to revisit that.
Maybe the reviews can still convince me the game play has been completely overhauled and I never have to see a follow / stay in range to eavesdrop mission ever again, nor the boring Animus crap.
Give me the battle of Salamis for example, that would be next-gen worthy
After black flag I would have liked to explore the Aegean sea in 400 BC. Maybe next one.