I was hoping for some stealth buffs and worrying about stealth nerfs. After being in the lab with Leatherface since the patch was installed, I can safety say he's exactly the same. No damage or other nerfs. All frame data is exactly the same.
I'm not disappointed, as I felt Leatherface had the tools to contend with most of the cast. I was hoping for the annoying hurt box issues (mainly for Pretty Lady, but the s3 into special not connecting on neutral opponents. neither have been fixed) but alas, was disappointed.
Since his worst match-ups have been nerfed, he'll most likely rise up the list. I don't know but I'm happy-ish for the patch. Could have done with some fixes but not essential.