I just saw her and this is what she said:
She will be back playing tennis later this year (didn't give a date) and her rehab is going well
Response to MN's comment that would like to play the sisters in doubles because she and Venus aren't good doubles players. Serena said that she and Venus have won the career Grand Slam in doubles and have nothing to prove to anyone.
Repsonse to the fact that the FO final ratings this year were down 39% from last year when she and Venus played. Serean said that she and Venus have brought a new fan base to tennis.
There was more but I can't remember.