Yes, and generally that leads to restaffing and changing management. Likely you'll see that before you'll see Nintendo leave the hardware market.
Around the time Sega left the hardware market they swapped heads of the company rather frequently, for various reasons.
Again, NX would have to fail pretty hard, Sega Saturn hard, to leave the hardware market.
LOL...the Wii U is so close to the Saturn's level of fail. Saturn sold around 10 million and Wii U is barely above 12 million in four years.
Yes, but Sega handled the Saturn worse than Nintendo is handling the Wii U. They burned way more bridges than Nintendo has.
Depends on what bridges. SEGA burned them with retailers, EA, and a few others I'm sure I'm missing. Nintendo continues to burn the third party bridges (always have). I feel SEGA always handled third party companies better.
Nintendo has always been able to survive because of its first party content. The big question I have is, how long will that last? Honestly, I don't play games the same way anymore. Games are bigger and take more time. It is easier to have 1 main game whether it is Minecraft, Warcraft, DOTA, call of duty etc. This is bad if you rely on software sales for one particular console.
Maybe the NX will be able to bring back that one major month of third party support the WiiU had with Mass Effect and Batman...
Nintendo only had issues with Amazon retailer wise, and they seem to be better because Amazon is now selling Nintendo hardware again. Nintendo didn't burn any bridges with third party companies with the Wii U, 3rd party companies decided it wasn't worth it to port to Wii U. That's not really burning a bridge. Sega burned a lot of bridges with 3rd party developers with the Saturn, none of the developers knew the release date or were given dev kits early enough to get software out for launch, hence why the Saturn had such shit 3rd party launch support. The fact that a lot of 3rd party companies are looking at the NX and think it looks promising proves that Nintendo is not "always" burning third party bridges. Sega's third party support was so bad early on that several companies went and reverse engineered the Genesis so they didn't have to deal with Sega's ridiculous 3rd party restrictions. Nintendo hasn't had that issue since the NES.
Don't fully understand your point on the second part, but yes, 3rd party support is crucial to be the best console in a generation (Like PS2 dominated in its generation)
I don't think that's the best analogy, Mass Effect and Batman were really poor ports and neither sold very well on the Wii U. Probably the exact reason EA stopped producing content for Wii U. I think WB produced more games and might still with Scribblenauts and what not. Nintendo's current 3rd party support is almost non-existent, but WB and Ubisoft supported the Wii U for quite some time. IMO, Nintendo's strongest trait this generation is their indie support, which is kind of hindered by their inferior DRM. Both Xbox and Playstation have higher restrictions and longer processes than the Wii U in terms of producing and publishing digital titles.
I applied to be an indie developer on all 3 platforms to publish a game. Sony wouldn't talk to me, literally, they didn't respond to my request at all. Microsoft accepted me into their program but told me they wouldn't sell me a dev kit until I published a game or launched a successful kickstarter... they may have had a 3rd method they would be willing to sell me a dev kit, but I don't recall... responses only through email, I still get ID@XBOX emails but they never got back to me on buying a dev kit. Nintendo actually called me on the phone and spoke with me for about an hour to get to know me and my project, said they would be sending me an email to access their developer network with access to the tools and such, and that if I wanted to order a devkit that I could contact their sales department (probably not called sales department, I can't recall what they called it) and they could give me more information about pricing and such, as well they were willing to send me one for free on a probationary basis.