As you said, findings are coming so fast it is hard to adsorb all the information. I am awaiting the publication of a joint Thai/French excavation of a rock shelter near Chiang Mai of about 25,000 years old. One might wonder if it and the Puebla site are both of "Austrailaian" origin???
There's a good possibility.
I've done a search on the ancient rice found in Sakai Cave but I came up empty. Have you found anything on this?