The three teams mentioned will be debuting new uniforms for this season. All three teams have already released the new logos for this season. I will post what I've found uniform wise so far. Vikings: They have released series of teasers which basically show the entire uniform - the helmet. There are speculation that it will be a matte-purple helmet. The uniform will look like this mock-up: Vikings went for the old-school classic look. They scrapped the gold collar, lost the big shoulder stripes, simplified the jersey and went to a darker shade of purple.