I would say no. Either he knows that he has done something that requires a pardon or he doesn't. If he doesn't there is no need for a pardon if he does, he knows (or would be advised) that a self-pardon is uncertain. Instead, he can wait until his last day, resign and get Pence to pardon him. There are precedents for that.
Doesn't help with the New York state indictments though.
Wales tribalists don't understand American laws. No conviction means no pardon required.
You don't understand crimes and torts.