As for the other parts of Genie's look, it looks like Disney subbed out the gold shackles for some silver jewelry, but kept the red sash above his ethereal lower half. It's definitely jarring at first, so much so that one might've completely glossed over Aladdin's magic carpet looking straight up like the animated version in the background. Those two certainly look the most like their original characters, although the differences with other characters are mainly due to clothing choice.
Source : https://www.cinemablend.com/news/2466737/see-will-smith-as-genie-in-disneys-aladdin-trailer