No change. That particular case just happens to hit his "states rights" stance, and since it's a dissent, he can make the dissent without changing how the decision actually goes. Also, he appears to be a bit schizo on the drug issue:

http://www.ontheissues.org/Clarence_Thomas.htm

But it appears that the appearance of conflict of interest (http://www.thenation.com/article/155499/clarence-thomass-eth...) is still with him: http://www.motherjones.com/politics/2013/07/ginni-thomas-gro...