That’s tight, especially in light of the additional security check at your US-bound gate. I’m also not sure if you will need to go through security at IST after arriving from JRO.

bottom line: there’s a chance you will make that connection if all goes well (new airport may or may not play in your favor, nobody knows yet), but there’s a decent chance that you won’t, in which case TK will put you up in a hotel for the night and rebook you on the flight the next day.

I’d go for it if I had the following day off.