New Home kit 2018/2019
Online and InstoreBuy Now
It will be the 22-year-old's fourth successive season-long loan deal having previously spent campaigns with Celtic, Galatasaray and Sunderland.
His first spell with the Super Lig club came during the 2015/16 season when he played 28 times and claimed an assist in the Turkish Cup final.
A previous winner of the PFA Scotland Young Player of the Year, the central defender has so far won eight caps for Belgium and made 99 career appearances at club level.
You can keep tabs on Jason's progress in our weekly Loan Watch series.
Manchester City midfielder keen to help drive Club's quest for silverware
Your daily roundup of City transfer news and gossip