Sitting down with Assassin’s Creed Producer Martin Schelling, and lead game designer Jean-Sebastien Decant, they revealed to Expansive that the Wii U version will exceed its current gen counter parts visually, he also confirmed that the AC:IV companion app will be fully compatible with the Wii U version of the game.
‘It will be I think, in between the current gen and next gen consoles. We could have had some of the tools from the companion on the second screen, but because the companion app will be available with Wii U too we didn’t include them.’
With many Wii U ports often being rushed and not taking full advantage of Nintendo’s console’s more modern hardware it is great to hear that Ubisoft’s team are taking the time to push the system.
Our preview of the game will be live very shortly, and stay tuned for the full interview. Assassin’s Creed IV: Black Flag will be released at the end of the month for PS3,Xbox 360. Wii U, Xbox One, PS4 and PC versions will follow on November 22nd.
source: http://expansivedlc.com/assassins-creed-iv-wii-u-visually-current-next-gen-works-companion-app/
This along with the news that WatchDogs will be visually above current-gen PS360 systems confirms that at the very least the Wii U capability wise would be somewhere between current and next-gen systems. However, Wii U is next gen in the sense that it's Nintendo's newest console after the original Wii.