Yes there is Star Alliance Gold Track at the new IST.
https://www.turkishairlines.com/en-i...faq/index.html
7. Will Fast Track points be available at Istanbul Airport? How many Fast Tracks points will be available in the terminal in general?- At Terminal entrance: Our Business Class passengers and Elite, Elite Plus, Turkish Airlines Corporate Club and Star Gold cardholders travelling abroad will use International Flights Fast Track Gate for entering departure level at the terminal entrance.
- At Passport Control Zone: Our Business Class passengers and Elite, Elite Plus, Turkish Airlines Corporate Club and Star Gold cardholders will use six passport counters located at the end of the zone and security check points (X-Rays) No. 1, 2, 3, 4.
- At Domestic Transfer Point: For our Business Class passengers, Elite, Elite Plus, Turkish Airlines Corporate Club and Star Gold cardholder transfer passengers arriving with a Turkish Airlines domestic flight and continuing their travels with another international flight, one passport counter and one security check point (X-Ray) are available at the Domestic Transfer Point.
- At International Transfer Point: For our Business, Elite, Elite Plus, Turkish Airlines Corporate Club and Star Gold cardholder transfer passengers arriving with a Turkish Airlines international flight and continuing their travels also with an international flight, 3 security check points (X-Ray) are allocated at the Domestic Transfer Point.