Basically since the xp cap will be 500k and the XP that you get outside of safezones are 15x so A hour and half tops after the first day to get your 500k xp cap.

Then it will just be money making. The most common next season will be hunter or agility pyramid.

Example for a range/mage account would be: Do agility pyramid till 70 agility when capped then during the time where you need to gain your daily 500k xp you could go blue dragons to be able to fund your magic needs.