Yes, he will have a sage mode . somewhat like the sage mode of his master, Jiraiya. He used it in defeating Pain.
there isn't a kuubi sage mode. the eyes you see in the manga is just a mixture of his demon fox chakra and his sage chakra giving his face the appearnce of the kyubi cloak and the sage mode eyes.
itachi is better than naruto without sage mode but with sage mode naruto is stronger and faster
If you really meditate hard, and put your spiritual power and blend them with nature you would be able to achieve sage mode, just make sure u put some makeup when you have accomplished sage mode, you want people to know your on sage mode for safety purposes.
Yes. Sage mode increases the strength of all ninjutsu, genjutsu, and taijutsu of the user
Well in my opinion a sage because jiriaya took down a pain in sage mode and when naruto is in sage mode he took down all of them exept for 2 or 1 I'm not sure but it's definetley a sage
I guess you are refering to Sage mode. Sage or Hermit mode is when someone trained in senjutsu has made Sage chakra (normal chakra mixed with energy from the nature). In sage mode, ninjutsu, genjutsu and taijutsu are stronger, the user becomes stronger and a lot of things. Follow the link for more info.
no but there is a naruto setting when he learns to use the sage mode
it lets you summon more power and makes the sage toads more powerful
Naruto does not combine the sage mode with the Kyuubi`s eye because when naruto went through the sage mode, he turns little bit into a frog. You should read more Naruto Shippuuden manga chapters.
Maybe. Sage mode can strengthen you. When nartuo finally got sage mode he fell down a mountain but didn't die. He only got some scratches. So I bet the inner gates will not able to penetrate through naruto's sage mode.
Yes.