While I am not holding my breath or even thinking it will really happen; making the class Rogue leaves the door open to create a second job to stem from it as Thief. With the lore explanations given regarding the guild, this also leaves the door open for a lone Thief to refuse to join the guild, or rediscover the "old ways." (Think similar to Monk, or Warrior)

E3 last year they announced Arcanist and Summoner, without mentioning Scholar at all, it is possible they would have a repeat performance here...

Again, not holding my breath.