Returning Player about Scenario

[Narmito]

i came back to complete the Event for the 7th Umbral Age. I m trying to find any information about the root that i must take to complete only the content that has to do with the 7th Umbral Age...cause i dont want to complete the game at this state and lost all the changes for the Quest -cutscenes with voice oves - instances- primal battles the same content from version 1 to version 2 but revamped.

i mean that alot of content (version 1) its gonna be the same for low lvls -mid lvls in the version 2 and i dont want replay all the game from the begining i m allready 1.5 year hear.

i m hoping that i can max pug/monk and play only the scenario with Event for the 7th Umbral Age and when the version 2 came to switch and lvl up at lancer/dragoon and play the game with all the quests -main scenario thats still there from version 1 but revamped

sorry about my english ^^

so what i must complete ? pls help ^^