Nintendo's list of unannounced games at E3 this year was pretty awful. Pretty clear they are giving up on the Wii U.
Which is sad, that Wii U is a really fun console. I think they need to ditch gimmick gaming. Have a wonky portable, 3ds type or maybe a funky tablet, and go back to the board on the consoles. If they put out something that competes head to head with Sony and Microsoft I think they'll fare better. People still love Nintendo's IPs. Mario, Metroid, Zelda, Donkey Kong, all are legendary. What they don't necessarily love is having to access them through unconventional means like they have the last 2 times. Gamecube flopped because it used different media than PS2 and XB. The mini-dvds were a failure. N64 was great but aged poorly because it was the last cartridge. Last console run Nintendo truly dominated was the SNES over the Genesis. I mean the Wii beat it's opponents in console sales, but it wasn't as profitable as the 360 and PS3, nad it's gamers left it. Wii stepped into a void of casual gamers, but in the end the casual gamer doesn't want to spend 250 bucks for a console and 50-60 bucks a game they'll play for a few weeks.
Nintendo IMO has a few options ahead of them. They can stay weird on all fronts and hope the niche sticks with them. THey can stay weird on one front, or go more conventional across the board. I like the 2nd option. THe Nintendo DS was a resounding success. The original is the biggest selling portable gaming system, the 3DS could very well come close to 100M units moved by the time it's cycle is done. The 3DS appeals to a broad market. Casual gamers have an appeal, but primarily it's for people who want something lighter. It's a better gaming alternative to a tablet or phone.
There is one other option Nintendo has, and that's to fast track console releases. Stay weird but instead of keeping the same console, upgrading it. Keep games backwards compatible, so on so forth.