User blog comment:CenturyKiller/Does anyone believe Matriarch Aethyta could be Liaras she-father?/@comment-4073965-20110617184707

"The writers are keenly aware of the speculation and there are indeed discussions about how this plot line will resolve in Mass Effect 3. And that’s all I can say about that." --Mac Walters, ME3 Lead Writer

I guess we'll just have to wait and see in Mass Effect 3.