I don't think the length will be an issue but I do wonder how people will react to a traditional Zelda after BotW, especially those who've never played/didn't care for traditional Zeldas. I enjoyed BotW but didn't like it as much as most people so I'm elated for a traditional Zelda, but I also know I'm in the minority and most people put BotW on their best of the best lists.
My biggest concern is if it'll retain the same 'feeling' of the GB game... most everything I've seen suggests Nintendo's making that a focus so I'm not worried. Can't wait!
Yeah, BotW is just a completely different beast, as I don't even place that game along side any of the past 3D games either. I've liked most of the Zelda series, with BotW being the only game I flat out didn't care for, or even consider it much of a Zelda title for that matter. I guess there may be new fans who only have experience with BotW, and they may be put off of Awakening, so they may have found the game better suited to them(or may like both).
This was a Zelda game thinking outside of the box at the time, but was very much still an amazing Zelda game. Now with the graphics upgrade, the charm and life of the original game just seems to come through all the more. And yes, this game was a little short side, but I'll take a game with charm, heart and feeling that's short, than a HUGE open world that felt(at lest to me), void of any substance, heart or feelings that I associate with a Zelda game.