Update:

2017 has the lowest amount of 6+ and 7+ since at least 1999.
We would need seven 6+ and three 7+. Insane year.

No new 6+ in 11 days. Just before extreme supermoon on January 2nd. (As already discussed in depth by other posters).

The extreme southern event should precede any 8+ happening. I compiled a brief list of locations which could pop 5+. Then we are entering the critical window. I expected the southern event earlier, but it's still relevant to watch out.

There really aren't that many great indicators about 8+ but this is one of the best.

50S+ locations: Antarctic Ridges, Macquarie Islands, South Sandwich Islands, Balleny Islands, Bouvet Islands, Scotia Sea, South Georgia Islands.

-Finland