It varies wildly. It is best not to preoccupy yourself with it. She might file, she might not. You just take care you do not get railroaded. If she takes ANY legal action, do consult a lawyer. It is VITAL you get proper and timely legal advice. Do not sign or agree to anything on the spur of the moment. DO NOT RELY on her to play fair, remember, she feels entitled for all the "horror" she "endured" in the marriage so she will likely try to get what she can. Protect your assets, make sure that she cannot withdraw any money from joint accounts without your consent (set it up with the bank). If you have your salary going into the joint account, divert it to a new account that is your alone. Also do not take money from the joint accounts as it might paint you in an unfavorable picture in any possible divorce proceedings. But do protect yourself. Do check with the lawyer about changing the locks and garage codes.
It is a time for cool heads.
And yes, you are being baited. The reason is really very obvious. She wants you to make the first move, so she can continue to "be the victim". The bad old Jbroken filed on the poor innocent defenseless maiden.