Just did a quick overview and realized that there is not very much NA missing anymore:
Explenation: (V) announced/released | (X) variant |( ) still missing
Wave 1
(V) Flipshot
(V) Flogg
(V) He-Man
(V) Hydron
(V) Skeletor
(V) Slush Head
Wave 2
(X) Battle Punch He-Man
(X) Disks of Doom Skeletor
( ) Hoove
( ) Karatti
( ) Kayo
( ) Lizorr
( ) Nocturna
(V) Optikk
( ) Vizar
Wave 3
( ) Artilla
( ) Butthead
( ) Quakke
( ) Spinwit
( ) Staghorn
(V) Tuskador
Wave 4
(X) Battle Blade Skeletor
(X) Hook ´Em Flogg
(X) Missile Armor Flipshot
(X) Spin-Fist Hydron
(X) Thunder Punch He-Man
(X) Too-Tall Hoove
Deluxe
( ) Sagitar
Other
(V) Darius
( ) Sebrian
(V) Mara
(V) Crita
Lets say the missing characters of wave 2 would become the mini sub 2017. Sebrian - as a not neccessary character - could be the sub excl.
I always thought Butthead, Quakke and Staghorn would be a terrific 3-pack similar to the FFM or Star Sisters.
The only characters missing would be Spinwit, Artilla and Sagitar. Sagitar needs to be a bonus item anyway, Artilla most likely too, so the only guy who would left being desired is Spinwit. However he has been quite popular so he might have a chance to get a release later.
All the variants (such a Missile Armor Flipshot) are great for what they are, but totally redundant for MOTU Classics NA imo, so I would t want to waste a spot for a NA variant.
Summed up there are 11 figures and 2 larger scales left to have this line complete too.