If you ask me, I'm still for the reaching L60 fast, within a week or two by questing only, by this way, the population could reach a healthy number in each realm > realm imbalance wouldn't be such a huge issue, neither would be class and spell imbalance, meanwhile they could rework the whole XIM shop, fill it up with "cosmetic" stuff ( new and funny emotes, weapon skins, costumes, event-related items etc.)
Once that slow and boring leveling system and grinding is no more, I'm sure that there will be more and more new players, more L60 players and if you add the right items to the XIM shop, your income will be higher as well. Good for everyone!