^ Maybe we might get pics of all the kids together at some point?

Well no pictures of the twins babies of Diana Federer ..... yet but i have a picture of her taken in Basel last year ...

and this interview was after Isner's match in Shanghai ...
Q. I guess we'll have to congratulate your sister.
ROGER FEDERER: Yeah, I guess so. A little bit late, but yes.
Q. Looks like your family has a tradition of having twins. I begin to think you and your sister are twins at the beginning.
ROGER FEDERER: Me and her, no. Maybe I have a twin brother. He won six slams and I won eight slams. I did half of the things and he did the other half.
No, it's great. I'm very happy for her. It's a wonderful thing to have twins. I wish her only all the best. I spoke to her today. She seems she's coping really well with it. She got a boy and a girl. I got two identical girls. We're looking forward to reuniting. I haven't seen them yet. I'm sure when I come back to Basel, I'm sure I'm going to see them.