James P
G.O.A.T.
Most of the important ranking/seeding in Australia is set. Nadal and Thiem have already confirmed their participation, Federer has also hinted he'll be ready, so we only have the vaccine withdrawals to consider.
1. Novak Djokovic (guaranteed unless vaccine withdrawal)
2. Daniil Medvedev (virtually locked in, 1100 points ahead of Zverev and Tsitsipas, although he's losing 500 ATP Cup points in January)
3. Alex Zverev
4. Stefanos Tsitsipas (Zverev and Tsitsipas I believe are 100% locked in to at least the top 4, slight chance either can take #2)
5. Andrey Rublev
6. Rafael Nadal
7. Matteo Berrettini (needs two wins at ATP Finals to take seed #6, although it's pretty moot)
8. Casper Ruud (not a lock, he and Hurkacz are neck and neck for #8)
9. Hubert Hurkacz (see Ruud)
10. Jannik Sinner (might fall to #11 after this week, fairly moot outside of the "prestige" of being called a top 10 player)
11. Felix Auger-Aliassime (see Sinner)
12. Cameron Norrie (looks to be a lock at #12)
13. Diego Schwartzman
14. Dominic Thiem (no more points to lose to plummet down the rankings)
15. Aslan Karatsev (Shapo)
16. Roger Federer (chance to be passed by Denis Shapovalov this week, tbd seeding)
17. Cristian Garin (could also be passed by Denis Shapovalov, moot)
18. Denis Shapovalov (#15 seed with a SF at Stockholm, #14 with a F or W)
That's pretty much the entirety of the list that is in contention for those top 16 seeds. Doesn't factor in AO warm ups, but this is roughly how things should look in January.
1. Novak Djokovic (guaranteed unless vaccine withdrawal)
2. Daniil Medvedev (virtually locked in, 1100 points ahead of Zverev and Tsitsipas, although he's losing 500 ATP Cup points in January)
3. Alex Zverev
4. Stefanos Tsitsipas (Zverev and Tsitsipas I believe are 100% locked in to at least the top 4, slight chance either can take #2)
5. Andrey Rublev
6. Rafael Nadal
7. Matteo Berrettini (needs two wins at ATP Finals to take seed #6, although it's pretty moot)
8. Casper Ruud (not a lock, he and Hurkacz are neck and neck for #8)
9. Hubert Hurkacz (see Ruud)
10. Jannik Sinner (might fall to #11 after this week, fairly moot outside of the "prestige" of being called a top 10 player)
11. Felix Auger-Aliassime (see Sinner)
12. Cameron Norrie (looks to be a lock at #12)
13. Diego Schwartzman
14. Dominic Thiem (no more points to lose to plummet down the rankings)
15. Aslan Karatsev (Shapo)
16. Roger Federer (chance to be passed by Denis Shapovalov this week, tbd seeding)
17. Cristian Garin (could also be passed by Denis Shapovalov, moot)
18. Denis Shapovalov (#15 seed with a SF at Stockholm, #14 with a F or W)
That's pretty much the entirety of the list that is in contention for those top 16 seeds. Doesn't factor in AO warm ups, but this is roughly how things should look in January.