There's no way he is going to release Ep.9 just before Christmas, worst week of the year for patches and all the post launch crazyness and stuff.Judging by his pace (7-7.5 animations per week) he still has 4 weeks of rendering to do. So he should be done rendering around 9th December. Then there's still the two weeks of beta testing and we'll probably get the update in the 23rd-30th December range if anything else doesn't come up.
Either he does beta testing while rendering the final animations and goes for a mid december release or early january.