With the reveal of the 2ds, I am now confident that we will see a Wii U sku without the gamepad in the next year or so. 2ds is a path to more sales for an already successful system, and a padless Wii U could save Nintendo in the console market this gen.
Imagine this ... Wii U with pro controller included for $200!!! Combine this with free online/backwards compatible with Wii and you have the ultimate budget console. When Wii U Sports, Wii Fit U, Mario Kart, and Smash come out this thing would sell like crazy. Would not be original Wii levels, but it would turn a disaster (current Wii U sales) into a monumental come back.
Much like what Sony did with the PS3, Nintendo needs to relaunch the Wii U with this value focused model. Three simple selling points ... affordable price ($200 cheaper than PS4 and $300 cheaper than X1), free online, and a wealth of classic Nintendo franchises in HD.
Do all of this, and add trophy/achievement support (whatever they want to call it), cross game chat and an account system similiar to Microsoft and Sony, and even I will think about switching to Wii U as my primary system.
What about the pad? Game pad could be sold separate for like 80-90 dollars or something if you are into that sort of thing. Make all future games, or most pro controller and wii remote supported.