Subscription as an option rather than pre-requisite, basically a premium account.
They should had grown a pair of balls and took on RMT much, much sooner and with more than tokens.
Flying mounts was an irreversible mistake they'll never be able to properly rework because the masses are too used to it/unwilling to change.
They should had put more thought into it when introducing them in terms of mechanics (flying combat and so on)
Factions have been a laughing stock for a while