It won't change during the playtest.
Agreed, I was mostly voicing that thought because it would be cool to have Int to Perception as an option now, since it seems so vital, in order to evaluate more subtle aspects that might come up.
On a related note, and because it doesn't seem to merit its own thread:
Take the Case says "Whenever you attempt a check to investigate your subject, you gain a +1 circumstance bonus on the check" and that "checks to investigate are typically Perception checks or skill checks that use Intelligence, Wisdom, or Charisma."
Study Suspect says "Attempt a Perception check against the Will DC of one creature you can see. If the creature is the subject of your open case, you can use this ability as a free action."
Any chance the circumstance bonus from Take the Case is applicable to your Study Suspect roll? It doesn't seem so, since Study Suspect already gets a benefit if your target is the subject of your open case, but perhaps it was meant to overcome the lower value that Int offers with the current rules? I don't mean to argue for cheese, just wondering what others think.