Will the old quests go way?
It is highly likely (I think it was confirmed, but can’t find the quote) that most of the things will get removed when the story line is over, at least those that would not make sense afterwards (such as refugees, sign, attacks and the first Rox/Braham stuff.)
Krall Bloodsword – Mesmer
Krall Peterson – Warrior
Piken Square
Krall Peterson – Warrior
Piken Square
Don’t worry about getting the flame and frost done before April 30th, it’s very unlikely that they will remove it before the end of May (they haven’t removed any thing from flame and frost so far) but it will be removed eventually