I like the idea of advanced classes. (That is, a class without a craft-able lvl 1 weapon.)

You do a quest, and receive the weapon to unlock the class.

However, advanced classes should be introduced as part of a new expansion, and integrated into the new storyline (See FFXI:TAU) .

I don't want Arcanist to be the only DoW/DoM class in ARR that requires a quest to unlock.

It would really be confusing for new players.