there is a Stage 2 scheduled in the second half of Jan some time
I know that a fresh round of HKG-based applications will begin around the 11th or 12th of January. The scheduled stage 2 assessment in late January that you speak of could be for these people, but I'd keep checking my phone/e-mail if I were you. You never know, perhaps you might be slotted in as well.
Good luck!