Its coming with an expensive price tag. There's just no way around it. With the price tag comes free games. In a previous thread, I said that I hope it comes with that Chase Me game. It looks crazy fun.
It'll either be a collection of Mii based games, ala Chase Mii and Battle Mii, or a full New Super Mario Brothers Mii. I'm hoping for the latter. It's been too long since Nintendo packaged a Mario game with a system launch.
I think it will almost definitely be like the 3DS where a handful of smaller games come preloaded. It is clear that Nintendo isn't using the games as a "OMG WHAT A VALUE FREE GAMES!" thing (although that exists as well) but more as a way to immediately demonstrate the unique functionality of their machines. It doesn't take a full retail product to do that, so I think they will save the retail products for retail. Especially now that they know people will buy up stuff like Wii Sports (Resort) in the multi-millions.
Considering the Wii was a huge success in large part due to Wii Sports, and the Wii's success encouraging other companies to start packaging games with their systems again, I would be honestly surprised if Nintendo didn't package anything with the Wii U. It would go against the lesson that seemingly everyone has learned over the past generation.