Vivi22: spoiler tagging the whole thing because I'm lazy like thatI haven't played Deus Ex (that is, the original game), but to me, no, they didn't give any closure in HR. And I'm not talking about throughout history, allowing the next 25 years to line up with the other game, but with the individual characters. When I play a game, I want to see what happens to my characters. A good example of a good ending is FFVIII, where you see them all having a laugh afterwards. They show what happens to each person without having any text or speech required - perfect. Instead, in HR, we have some philosophical blab and no closure whatsoever regarding the central characters. It was terrible. I don't care if it has to line up with the other game, at the very least after the philosophy lesson show us either Adam Jensen doing his thing, even if it's dying or walking away. I didn't play that game to press a button and be educated in something that I don't care about. I played the game to watch Adam Jensen's story unfold, along with the other characters and whatnot. I wanted to see how everything would play out.

In ME3, your decisions throughout the game barely affect the ending - but those decisions do still impact the final game and to some degree the ending - not much, and even less so the final part, but overall they did still impact the game. In HR, your decisions don't affect the ending at all. I don't want to have to go play a twelve year old PS2 game in order to find out what happens. I don't even know if Adam Jensen has much of a mention in the original game at all. I certainly don't expect to find out the finer details of how each central character progressed for the coming months post-button pressing.

In ME3, you at the very least know if your character is definitely dead or not. That's a good start. You at least know if some of the other characters are alive. You at least know what happens next. You get to see it. You see squadmates. You see things relevant to your story. It's not much, no, and it's nothing near what it should have been. But compared to HR, it's a plethora of relevant information. In HR, we may as well have been given a lesson on the Aztec civilization - the ending literally told us NOTHING of what happens next. Nothing. And that's a bad ending, regardless of the "Oh, but there's another game and you can see what the world is like in 25 years time!" - I don't want to know 25 years, I want to know five minutes, I want to know what happens in one day.

EDIT: http://penny-arcade.com/comic/2012/03/16