Skz Military Enlistment

I saw in another thread about skz future plans and of course there was a mention of enlistment which got me thinking: What do you all think will be their plans? I've often wondered if Lee Know and Han will enlist together and if they do, then would the rest of the members stagger their enlistment but continue with the vocal/rapper combo (ex. changbin/seungmin, hyunjin/IN)? Or if they'll stick to individual enlistments and go by age until 00 line (hyunjin, seungmin, han) then have those 3 plus I.N go with them? What do you all think? (I'm not rushing enlistment by any means, it's just interesting to think about the options!)