To anyone saying these spec bumps would be enough, you are forgetting one very important thing. A large large part of any phone's appeal is fashion, a lot of people will see it as the same phone regardless of the internal change, plus a lot of people are valuing the bigger screen over a lot of other things, so I can understand people being unhappy if it is the same design
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Perception counts for a lot. They'll have to push the voice recognition thing pretty hard to emphasize the new shiny if there's no redesign.