Ryan Seacrest sounds like he's game for round two of "American Idol."

TMZ broke the story..."Idol" is coming back in March, 2018 on ABC. We got Ryan and GF Shayna in NYC Saturday night and he certainly didn't shut down the possibility of hosting the show again.

As we reported ... the new gig has almost super-human strings attached, requiring him to fly coast to coast twice in two days in the middle of the night each week to pull it off. Ryan seems to think he's up to the task... with an L.A. Fitness membership.

BTW... we got him going in to Le Bernardin restaurant in NYC. It's super expensive, so we're guessing he's banking on "A.I." money to pay the check.