Hello again.
I want to know that will be
-Trading / Market system
-PVP
-Clan/Guild
-Mentor/Aprentice
-Graphical Updates
-Better Chat/In-Game Speaking system
added to game? Were some of them in Alpha or JP server?

1) trading: As far as I know, trading is limited to stalls bought with Onigiri's real money coin system and all the items in the stall also have to be bought with the real money cash currency, but that's all I know so far about that and maybe some sort of auction system that also uses their real money currency.
2)PVP: I'm not sure but I think there are duels but I haven't really explored everything in the Japanese server so there may be other PVP activities.
3)Clan/Guild: There aren't really per say, the closest would probably be the chat group that can hold up to 30 people at once.
4)Mentor/Apprentice: I don't think this system will be implemented anytime soon as I don't think it exists on the Japanese server.
5)Graphical updates: Your guess is as good as mine on this one.
6)Better Chat: Again, your guess will probably be as good as mine on this one.
That's about it for all I can really say about these features, hope it helps but if it doesn't maybe someone else can help give more specific details.

Thank you ^.^
Players paying to open stalls in JP server? It sounds horrible.
And I expect developers serperate weapon efficiency with char stats. It limits player's choices to play the game that way
Before i forget, a suggestion page should open to forum, lol.