When do you planed to start the budokai?
I don't know when it will be added because there hasn't been an answer to this question yet. In my opinion it won't start until we get Adult Quest/Master Class Quest and all the TLQ,TMQ and UD..
everyone knows that there are several bugged quests and will not fly or grow, but when the server will close to make repairs?
or repairs are being made even with being online server?
Some repairs for bugs regarding players etc. which are systems that can be implemented while the server is online, the server won't go down. When there are some "major" systems to be implemented and it needs time, then the server will go down for some minutes. Everytime the server goes down for more than 15 minutes then some game mechanics,systems are repaired or added.
Daneos will let us know when the flying quest,TLQ,TMQ and UD will become available and it won't come without a notice/announcement. Be patient and play the game as it is now. I know it's frustrating but it's still DBO.