I found this writen by a blizzard mediator on there site:
So yeah, we're still working on the patch. It's coming along really well. We're getting there. I can't give an estimate or date, we're expecting there to be a good amount of testing required due to the types of changes being made. We want to take our time and put out a solid patch, and that means we don't have a release date right now.
Some exciting news - and it also may be some comfort - due to the types of changes we're making we will be offering the Diablo II 1.13 patch for testing and feedback on a test realm before its release. We'll have more information about how you'll be able to help test it in the coming weeks.
We try to give everyone at least a two week notice before a ladder reset. When it became apparent that the patch could potentially launch in two weeks, we put up an announcement just in case.
Now, even though no promises were given it's going to create some hope that it will be out, but we can only do so much to balance between expectation and information that's necessary for the community to have.