I picked Option 2, but here's what sounds good to me.

-Jobs will gain New/Advanced Skills and Abilities from Job Quests.

-Lore/Introduction on Job Quest, Tutorials on advantages/disadvantages of Jobs, and effects of the Skills/Abilities.

-Let/Make people get to know about the Job and how to play them.

-Jobs will have a Bar which will need to be filled. Once the Bar is full, your Overall stats will Increase towards the specific job.

-You will only need to fill the bar Once.

-The Bar can only be filled when you gain an Achievement(Any)

-I.E Paladin, Increasing Enmity, being hit by enemy's attack, Blocking, Parrying, Damage Mitigated using Skills/Abilities.

-Clearing quests(Any), Guildleve, defeating NM, etc should help filling the Bar.

-Filling the bar should take 3-7 Day of Normal playing time(2-4 Hours). Like getting R40-50 or R45-50

-Filling the bar should not be boring and that hard to achieve, so SE should add varieties to it.

-Make it fun.