Some answers:
I don´t think the game will be 200 hours long. With AO they said 50 hours long. The first time it take me 5 hours to finish it!!!!! ( without the secrets )with the secrets is more long. With AE, the same...
The game only will have 1 player mode, but... somebody played AO or AE with the 2 player mode?
One of the things with more anxiety I wait is to see elum again!!! I hope will have an importan role in the game but the last rumors have depressed me :-( ( I had hear too this some weeks or months ago... elum will make a playable appearance, but short enough one to be referred to as a cameo)
The rats and sea rex will be a not playable caracters
My question: I love the look of the new sligs: Magnum slig and big whammy slig, but I only see them in the art sketches and think perhaps they aren´t in the final game. (Too bad )

Someone of you have seen some image of them in the game screens or know something about this theme?.
Finally, I really think OWI don´t have show a lot of new things for keep the mistery . With AE they made the same. Until the last moment they show very little of the game, only a few screens of necrum mines, I remember... I think this is good for the game and for us