If we're in the hunt I don't see any world where we trade Correa.
Lewis does look like the real-deal, but he's untested and a rookie. I'd be much happier with him moving to a utility role and letting Gordon go via trade. I would also accept just sending Royce down if he starts to slump at all so he can guarantee regular playing time. He is a rookie with minor league options, which Gordon is out of. With the Saints so close to Target Field I feel like this is more viable today than it would've been when before the minor league restructure.
We have to remember that it's very common to rookies to slump once the league starts to adjust to you, and it's not uncommon for high-end prospects who flourished in their rookie year to get sent back down to AAA their sophomore year, or earlier. Think Trevor Larnach last year, Akil Baddoo just got sent down because he was struggling after his strong rookie year, and even Johan Santana got sent down in 2002, perfected his changeup, and became the well-known ace Twins fans love.
The TL;DR is I don't really love any potential trade that doesn't involve us getting a bonified top-of-the rotation starter that will contribute now, and I just don't see the Yankees being that fit. And any trade that includes Correa leaving a contending Twins team is indeed blasphemous.
On the other hand with the Reds playing so abysmally the Twins should be doing everything in their power to pry away Mahle, and/or Castillo in my opinion.