Cannon class announced . I assume its in the archer branch
link for the class.
http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=105&oid=023&aid=0003078504
3/4 the way down the page.
will it work with my rogue main? can i cannon dagger? would be sweet!
This was datamined and on these forums a long time ago 
look up rank 7/8 classes youll find it . But maybe there is new info.
the 1st news on canon class was ironically on sept 11
OP might want to bookmark this thread
Cannons are sub-weapons like daggers, you used crossbow with cannons.
Now I got a small flashback of Granado Espada Online.