I think Dior is re-directing its target to a more mature man. Maybe us the one who liked the skinny jeans and 'cool' t-shirts are not that happy but i totally understand that the house of Dior needed another aesthetic.
As far as SS08 is concerned, Dior Homme is still sticking with the formula they have been doing for years. Honestly, I agree with a poster above in that most people are not going to notice a change in Dior Homme. I'm sure some Dior fanatics won't even be able to tell there is a design difference.
KVA for Dior's SS08 collection wasn't anything groundbreaking, but then again, he didn't have much time to come up with a full line. Probably one of the reasons it was such a small, more intmate showing.
I think the real test is going to be when Hedi comes out with his own signature line which will probably resemble Dior homme too much. I'm more interested to know what Hedi is going to do on his own than how KVA is going to incorporate his lackluster design into Dior Homme.