Based on what I've seen so far, seems like Continental doesn't do much to improve wet grip of the CC7.
All the launch articles claim "improved safety and handling", but then the rest of the article only talks about noise reduction and comfort.
The thread design still looks like it doesn't push away water when driving through a puddle.

Rather disappointing considering the CC6 was really popular (I liked it for it's quietness, and dry grip was alright) but the main complaint has always been poor wet grip.