With the hard court season coming up, they won't be in any of the same tournaments until the OPEN. (Be afraid, be VERY afraid).
So there will be some chances for the Mauresmos and the like to get to some finals and take some tournaments.
And remember, it wasn't THAT long ago that Patty and Iva played a final in a field that included Serena and Jennifer.
Now THAT was a final to be remembered.
So fear not. All finals won't feature the sisters against each other.
Hit and giggle tennis is still available and will be for a long time to come. Just not at the slams.