Re: what happens next ?
1.obito is the final villain after becoming ten-tails jin
Probably.
2.he is the one toad sage talked about ( young man with powerful eyes,he will have ten-tails eye as well the nine tomoe sharingan and rinnegan )
Your talking about the prophecy, this cant be because it had to be someone who jiraiya had trained which was naruto, narutos dad(4th hokage - Minato Namikaze), nagato, yahiko and konan.
3.naruto will receive other part of kurama's chakra.
Maybe, I also think kuramas planning something by powering up.
3.madara will join with hashirama and others to stop obito (if it's doesn't gonna happen i can't see a way to stop him)
I honestly dont think this will happen. IT COULD! But that would just be to weird? first he wants to take over the world then hes gonna fight with the people he wanted to destroy to stop himself from being beaten, sounds to cowardly for someone like Madara. Madara might have another plan. Maybe if he kills hashirama he might get mangekyou x2? killing his 2 best friends? (I joke) but I dont think madara will team up with the good guys.
4.alliance will gonna fight obito (at least with his clones)
... I dont understand
5.naruto,sasuke and sakura will fight against obito at last
Hahahah this is a bit out of her league dontchya think?
6.sasuke and sakura will get injured . naruto will have to fight obito to save them and entire ninja world.
Na, thats to obvious. Kurama said he couldnt do anything against the 10 tails, hes probably right? I think they need everyone for this. the kage, orochimaru(Who might have Jiraiyas DNA with him), the leaf rookies aswell. And the current kage