Will they be different in any way other than a swoosh instead of the Reebok logo. Name brands are no worry to me. If the Nike one is a better design I'll sell it on ebay.
Nike is not going to overhaul any designs except for the Panthers and Seahawks and this is largely because they made alterations to their logo as well. However, they will be likely visually different with different fabrics and patterns. If you can wait, definitely do so, because my suspicion is that Nikes will be better looking. Edit: Apparently the Dolphins may change as well as they may use orange as one of their primary colors: http://phinphanatic.com/hub/dolphins-new-nike-jerseys-revealed/ Which matches with their gloves which have already been released by NIKE: http://www.solecollector.com/niketraining/?p=6831
I heard a while back that Rebok stopped making new Jersey's awhile back and the "official" ones selling on NFL's shop were actually cheap copies while they waited for Nike's stock to come in. Again, I don't know if this is true or not, but i had heard rumors. Do some research on it before you pay double what the Jersey might be worth.
The 2012 Nike Jerseys will be available for pre-sale April 15, 2012 and will be available for purchase April 26, 2012
Will wait until my local Modell's gets the Nike's in stock. Got a friend who works there so I'l get one with his discount.