I think it is an Ibanez. Wasn't there a story about someone trying to sell Scofield his old tele (that he sold a long time ago) and wanting way more than it's worth because he once owned it? He said no thanks to that and got Fender (or maybe he picked up this Ibanez) to make him one? I think he's a tele guy at heart.
I believe his first real guitar was a telecaster that he regretted getting rid of. Also, he plays tele a lot more now versus his semi hollow exclusively. I've read a few interviews where he's expressed his love of the telecaster.