And going higher means we might start seeing thruster based controls for future SİPER missiles. Anti Ballistic capability focused missiles have it because of air getting thinner and fins losing their ability to manuever the missile.
Reminder; it was stated in the report published by Aselsan years ago that They started working on 5-Axis DACS system with their own resources. A side note: THAAD missiles have 4 axis DACS.