According to a Youtube user, giancarloparimango11
. GameFreak will announce a Teaser Trailer of 6th Generations Pokemon OR a Remake version of Ruby/Sapphire/Emerald.
Here is the user's video pointing out that GameFreak hinted a Remake of R/S/E:
The user's blog about GameFreak:
News: Announcement Coming January 8th - The First Pure Pokemon Partner
But we will never know until Jan. 8th 2013 comes around.
But imo, due to the user's findings. It could be possible that R/S/E remake will be in the making.