The initial post and title is misleading. You ask about his playing being simpler, then discuss his style and creativity. These two are different, and it's cool to discuss them, but confusing when they are rolled into one.
Technically he has improved lead wise. He has incorporated more legato, tapping and sweeping recently, and seems more consistent with sweeping live now. Rhythm playing has remained the same.
About creativity, I don't really think so as a whole. I found stuff good lead wise on BCSL, and Repentance IMO was his most soulful lead. When I compare solos to Awake especially from now, to me they are in the same vein. His blues playing is still there too. Rhythm as I mentioned has remained its stellar self, which makes up the majority of songs, and therefore the majority of importance.