I found an article about that from last year February 2,2007
It looks like the designer of this years Super Bowl logo has slipped up and leaked a bit of information pertaining to the redesign of the Miami Dolphins and San Diego Chargers logos. The
report surfaced in a feature about Shandon Melvin, who grew up in West Virginia and designed this year’s Super Bowl logo. During the interview with Melvin, he slips when talking about the new logo to the reporter. As explained by the reporter…
“Right now he’s working on a new logo for the Dolphins and the Chargers.†Then the reporter adds, “Now, the inside word is that [Melvin] is working on a design update of the iconic NFL logo itself.†Then they cut to an audio clip of Melvin, who confirms the league logo revision: “We’re looking to update our brand just a little bit and to, I would say, refine it.â€
This is the first time the UniWatch Blog has heard about these redesigns of the Phins and Bolts logos. They feel Melvin will incorporate that long-overdue infinite regression into the Miami logo (a dolphin wearing a helmet with a dolphin wearing a helmet with a dolphin, etc.)
This could be interesting. I really have no opinions either way as I like the Phins logo but think it could use a refresher. I’m sure there are tons of die hard Phin fans who will be up in arms about this news.
http://www.sportech.info/2007/02/02/rumor-dolphins-to-get-new-look-logo/
Personally, I would like a change ONLY to the retro 70's version.
As for the new NFL logo, it will be unveiled at the 2008 Nfl Draft.