1) Drop the tablet!
No. This is stupid. They have entire games that rely on the game pad. It's also a tool that sets it apart. They actually need to use the game pad better, not less. Discontinuing the game pad is going to piss off a lot of people when they can't play upcoming games because they need to buy a new game pad. Not only that, but the amiibo is coming.
2) Nothing is capable of saving the Wii U.
No. Advertising can sell Americans a rock covered in dogsh*t as a tasty snack. Aggressive and smart advertising can save the Wii U, Nintendo just isn't capable of it. More games could save the Wii U as well, but at this point that requires massive restructuring and up-scaling because it's not coming from the outside. Finally, please do not write the Wii U off until the amiibo is come and gone. I thought Skylanders were dumb as hell, then they generated money possibly greater than CoD, selling well over 100,000,000 figures in a little over a year. If the amiibo is only a fraction as successful, it could generate large amounts of cash without even pushing consoles by having an absurd attach rate.
3) Nintendo should announce a new console.
Wrong wrong wrong wrong.
Wrong wrong wrong.
Wrong wrong.
Christ how can you be so wrong.
The Wii U is no longer sold at a loss since May. Announcing a new console while you still have more big releases you're slinging money into ahead of you than behind you is wrong on so many levels I have to question your intelligence for suggesting this. Smash and amiibo next month with Zelda, X, Mario, Star Fox, and likely Metroid in the works as you read this. Announcing a new console now is putting all of those games out to pasture and damaging those franchises. Don't expect it before 2017.
4) Bayonetta 2 and Devil's Third are bad moves/not console sellers.
These games cater to a demographic that the Wii U currently has almost none of. Their sales will be lower than a Mario, Zelda, Smash, Star Fox, Metroid, etc. That said, they will have a disproportionately large affect on console sales because their audience will likely need to buy a Wii U to play it. Now please notice that I'm talking relative sales here and not absolute. Say Smash sells 2mil copies and moves 500k consoles, but Devil's Third sells 100k copies and 50k consoles, then it sold a disproportionately large number of consoles (2:1 as opposed to 4:1). The benefit of these games is that Nintendo put almost no time into them and salvaged some of these partway into development, spending money to buy time essentially. A little boost to console sales, wide critical acclaim, and exposure is better than the money they spend on the projects.
5) Nintendo should go third party.
No. Nintendo will likely be around longer than the PS or XB brand. Sony could very well go under still due to the rest of the company utterly sucking, and MS isn't exactly pleased with the XB1, especially when they benefit from PC gaming and have a rising interest in smartphone and tablet gaming. On top of that, both consoles are in a graphics race that inevitably ends in "get a f*cking PC". Seriously, PC gaming is on the rise, and nowadays even I can put a PC together. The cost of a PC stronger than the latest consoles is also falling through the floor because consoles are improving so little over time.
The only company not running towards this evolutionary dead end is Nintendo. Yeah, they're struggling with the Wii U but they are coming off of the Wii and DS. The 3DS is no slouch either, it's not as big as the previous handheld, but it is still a money printer and helping to offset the losses incurred by the Wii U. There's a big difference between "not selling what we need" "Not selling as good as X" and "not being profitable".
Also, the profits from the console + games sales > Multiplat sales. That formula may not be as rock solid this gen, but it's held true before and likely will next gen as well.
Yeah, the Wii U has been a total misfire. The only way it could have been worse is if MS had revealed the Wii U by performing another abortion on stage for its release, but come on people. Try to let these dumb ideas die in a fire.