Truthfully, they'll crush the buildings just by making it yet again, a bigger phone.
They'll finally win over the "I hate iphone because its too small, but would buy one if they make it bigger" group, which will predominately be non-samsung users as they, like the iphone sheep, are loyal to their brand. Although some Samsung users may finally flock over to Apple, because its "finally on par" with the Galaxy S phones, and Apple will also win over the crowd who are still on the 4s and 5