Nintendo should shift Wii U's focus to just satisfying their *adult* fanbase, because I believe that is the primary Wii U audience, casuals haven't shown up and they tried the "market to kids/families" thing last Christmas to mediocre results.
What Nintendo should do is offer some very nice pre-order bonuses on these games IMO. You should get say a free pair of NFC toys ... one of Link and one of a character from X/Bayonetta/Hyrule Warriors if you pre-order. These figurines should not be available any other way.
Maybe they should look at collector's editions for these games too with artbooks/soundtracks etc. included.
Stuff like that will get the core fanbase to rally around these titles. Other things like perhaps a free eShop download of Xenoblade or something I'd advise.
I think Nintendo should up the rewards for people who support these games.
Also take some chances with the marketing of these games ... what's there to lose at this point? I would do all types of crazy/weird viral marketing for Bayonetta 2 on the internet (cheap).
