E3 was poor in quantity not in quality, i hope Nintendo announces games on their own pace, something they usually do...

Alright, I agree, but I don't think Nintendo is in trouble. The main issue is will Nintendo be capable of keeping 3rd party, non Ubisoft titles, to be released on the Wii U even when the PS4/Nextbox release. It's one thing to get Assassin's Creed 3 and Mass Effect 3 when the PS3/360 are still around, but if third party shifts to the next powerhouse consoles, and the Wii U doesn't get a version of the game....then it might be in trouble.

Actually.....what I think the biggest issue for Nintendo is staleness. The Wii saw great iterations of Zelda, Mario, Metroid, Mario Kart, Smash Bros, Donkey, Kong, etc. Assuming Nintendo can make sequels to these franchises that have 9+/10 scores, would people even care? How many years can Nintendo just release sequels?

It's hard to tell. The generations change every 6 years. The kids who played Nintendo moved on, and a new generation emerges, hungry for all the games their older brothers/sisters played.

I'm not sure how long this can go on, but maybe Nintendo needs to more accurately brand their game series so as to not confuse customers.

I dunno about that, Nintendo has a strong fanbase online and I would argue that most Nintendo fans don't just move on.

I myself own every Nintendo except the Virtual Boy and have plan to get a Wii U and a 3DS. There are enough niche/small volume franchises from Nintendo to keep me hooked (e.g. XenoBlade, Pikmin 3, Paper Mario, etc).

I just keep thinking, it's Mario and Zelda that sell, and the most successful iterations are the ones closest to the original design. Nintendo hasn't really made any new high volume franchises or characters since Smash Bros in the late 90's. I wonder if they still have what it takes to make a new high volume franchise.