Does anyone actually know what the plot is going to be? I remember the guys talking about how it's about an older Graham telling a story about his past to his granddaughter. The trailer shows a lot of scenes that could be from the first game. It's been a while for me, but I recognize the dragon, his cave, the mirror that was found there and the well. Could just be nods, but it makes it seem like it's retelling of the first game (which kind of goes against the narration, although they can extend it quite a bit as there isn't exactly a lot of plot in the first game).
Like I said earlier, I was never really a Sierra guy back in the day, but one thing that I always found really cool was how big the world seemed and how you basically decided where you wanted to go yourself. I hope they'll keep that, instead of turning it into a linear action adventure. I'm not expecting a Skyrim-sized world, but getting lost and deciding where you wanted to explore was kind of magic back in the day.
I don't think I've ever beaten a Sierra game though. I could handle (and liked) the death scenes, but the dead ends and obscure puzzle solutions where way to much to handle for me as a 8-year old non-English speaker. Just liked walking through the world and trying random stuff. My real passion began with the first Monkey Island. Still, pretty cool that it's coming back, and cautiously optimistic about it, depending on what they're actually going to do with it.