If they do anything really hope they lower the flex rating to like a 64 or lower because I know that Fed probably doesn't use a 67. I have no reason to buy this racket because I have a K90 and a KPS88 and I love them both but if it plays really well and I really like the paintjob I will probably scoop one up if I can get it used at a good price later.
Btw, as simple as it is I think the KPS88 has the most beautiful paintjob of any racket I have seen. Even people who know nothing about tennis or tennis rackets get pleasantly surprised when I show it to them.