I just got an update for Cortana, it looks like server side, because nothing has been installed on the phone. Now I have the dividers between different blocks of interest, my manually defined stock watchlist has been replaced with the one I have in Bing Finance and Cortana asked me the famous question about what my interests are, which she didn't ask at the beginning! However, when I accepted to do that she came back with the message "I can't get to my questions right now, I'll ask about this later" and so far she has not proposed it again. Anyway, glad to see things moving, well done.
Update: she has asked again just now, about 10 minutes later. However, the result is still the same