Board Thread:Spoilers!/@comment-6175354-20141215234519/@comment-5899967-20150131012714

David Anders twitted about coming back this season, but I haven't heard of him on set.

Ruby was mentioned in an article, but I don't know if it counts as a confirmation, most likely not: http://www.zap2it.com/blogs/once_upon_a_time_snow_white_prince_charming_villains_not_heroes_eddie_kitsis_adam_horowitz-2014-12

Actually, I don't know if that part about Ruby was said by A & E, or just by Zap2it, I'd say the latter.