Re: Naruto 435 predictions.
I think it's more likely that his "escape" will involve the remaining natural energy gathering clone and him just coping with the situation as he often does. Pain might drop him to the ground and then regret giving him the opportunity to fight back. Pain recently has started giving a lot of preachy speeches, it's not out of count that he will try to lecture Naruto before he makes an attempt to leave. After all he's arrogant enough to not feel a need to leave immediately now that Naruto is dealt with in his mind and Konoha is more or less crushed. Plus... it's a really typic motif in all of Naruto's fights.
We might see the kyuubi, but I think Pain is knowledgeable enough about the bijuu and their hosts to know that he only needs to extract some energy and then stop. If he drains most of Naruto's energy and doesn't go too far Naruto will be exhausted. If Naruto afterwards attempts to use the kyuubi Pain can probably use a seal or knock him out.
Saying that Hinata might react to seeing the kyuubi, but I'm still skeptical.