You know what they did with all E.T video games in 1983? Nintendo needs to start making preparations to do that with the Wii U, bury it and move on. It's only going to get worse from here so unless they plan on releasing Mario, Zelda and Metroid games yearly, they need to take all that Wii money, build a decent console that is more powerful (can't stress this enough) than the Xbox and PS4. Sell their souls to Activision, EA and 2k. Without COD, FIFA, Madden, Battlefield and 2kSports. Your console isn't worth a damn, and it will always be relegated to being second or third choice.
Make an online service that can match every basic functionality of PS plus and Xbox Live. I'm sure it's not that hard to pay someone to make a side by side comparison of what those 2 services have in common with each other and make sure their service matches every commonality. Now if they don't do this I'm certain we'll see months where the Wii U ships <10k units in the U.S. All this needs to be done by Holiday 2015 for them to even stand a chance because once MS and Sony reach the economies of scale where they can produce these consoles for next to nothing (relatively) and the price drops start hitting, it's over.