Reasonable on 13 September 2009
Well, the developers have said that it will be at least a third longer, so 1) should be taken care of.
As for 2) well, it seems they're making a deeper story this time around (although I did feel the baddies were rather underdeveoped Nathan's dialogue and tone of voice - great voice acting in Uncharted BTW - told you pretty much all you needed to know about his relationship with Eddie.
As for 3) - Uncharted 2 is at least part of what came next, so you should be good to go there, too.
Try to be reasonable... its easier than you think...
