Let's face it, this will be competition between Sunwell team and Whitemane team, they need to attract people, majority of people that plays are people nostalgic for wotlk (including me) and those people who have day jobs and can play couple of hours a day doesn't want to level up forever since they are excited to jump in wotlk content. All content before wotlk is unimportant for them and they would very much skip it as possible. And that's psychological thing, you'll attract more people with free mount on lvl 20, more drop rates or xp rates pre wotlk content, like they did with ally perks in o