Well, you aren't hearing from him lately because he doesn't go to Australia and he probably never will. He is afraid of flying, so he really can't fly to Australia.
As for him keeping low, I believe he made all those statements way back to get Venus and Serena on the board and maybe put doubts in other people's mind as to their ability.
Now, they are on top, he doesn't have to say anything. He's letting them do all the talking with their rackets.
I definitely don't think the divorce had that much affect with their relationship because Richard and Oracene have been separated for a long time now. They still love him, and you would know this if you saw the interview with Venus on ESPN after her Semi match, Venus gave a BIG smile, and said "Hi Daddy" in a little childs voice. It was sooo cute.
Good Luck: RENA, MATTEK, HAYNES, GULLICKSON, HARKLEROAD, RUBIN, GRANVILLE, LEE-WATERS, SCHNYDER, JACKSON, PERRY, KING, SUGIYAMA, PIERCE, TULYAGANOVA, IVANOVIC, KUZNETSOVA, MOLIK, DANIILIDOU, MEDINA GARRIGUES, PETROVA, PENNETTA, GOLOVIN, PEER, LI, SCHIAVONE, RAZZANO, ZVONAREVA, SPREM, SREBOTNIK, VINCI, & SAFINA