I've been trying to work out what the open spots are for the Japan game and I've come up with open spots at 7, 14 and 20, based on this team
1 Zander
2 Faessler
3 Nonggorr
4 Smith
5 A. Blyth
6 Uru
7 OPEN
8 Tauakipulu
9 Thomas
10 Creighton
11 Daugunu
12 Henry
13 Flook
14 OPEN
15 Grealy
16 Blake
17 Asiata
18 Fa'agase
19 W. Blyth
20 OPEN
21 Jeans
22 Lynagh
23 Aubrey
Obviously this is dependent on the EOYT squad as well but this is what feels likely right now. I could see Aubrey starting, but I think they're more likely to bring in a specialist winger (Fittock and Oates the front runners).
I'd have Anderson as the 7, the 20 could be Wallis though I'm not sure they'll go with both next year so it might make more sense to look at a bigger body. I'm not sure anyone really stands out though.
The last question there is around props/hookers - I wouldn't be surprised if they left Blake at home to bring Dobbins instead, or run Asiata at hooker and look at another option at prop.