It looks like Amazon is taking pre-orders on a Friendship is Magic DVD, with a release date of February 28th. From the run time of 110 minutes, we can probably assume it has 4-5 episodes packed in.
Unfortunately not a whole lot of information is available right now. The studio creating the discs (Shout factory) has had rumors of its production floating around for a while now. I guess this is the confirmation of those.
At 10 bucks, its much cheaper than the Target disc with three episodes each.
I'll keep on updating as more information about it floods in. Hopefully we will see a full pack in the future!