2 - It isn't said anywhere and well, I'm betting the people themselves don't think Zero is going to live on forever and ever. He's since as a hero, but I doubt they expect him to forever take care of the world. I was more under the impression that with the younger ones the world would grow on to become more peaceful and able to handle itself better not under the driect thumb of Britannia and its royals. Or maybe zero would become one of those legend type things that lives on through history, even after Suzuku eventually died, but I can't really imagine him telling anyone about his reality, that's what was so sad about his fate.
3 - The hand holding mask thing could have been taken as just Lelouch throwing his hands out in death throe. I mean, after being stabbed in the chest I doubt your body's much under your own control anymore, and it'd be seen as him just grabbing onto the nearest steady object, as in Zero/Suzuku. The lip reading is a totally different topic, assuming they caught that, and yeah, with all the cameras there, they would - that can only really be explained as - it's geass.
(no subject)
3 - The hand holding mask thing could have been taken as just Lelouch throwing his hands out in death throe. I mean, after being stabbed in the chest I doubt your body's much under your own control anymore, and it'd be seen as him just grabbing onto the nearest steady object, as in Zero/Suzuku. The lip reading is a totally different topic, assuming they caught that, and yeah, with all the cameras there, they would - that can only really be explained as - it's geass.