New Pokemon Shown in Latest XY Trailer?

Airing on TV and uploaded to Nintendo’s official YouTube channel, this video has been out for a few days and upon first look reveals nothing new. But at the 0:08 mark what seems to be two grey Pokemon can be seen behind some fences to the right. We can’t say it’s a new Pokemon for sure, but it also doesn’t match up with anything else we’ve seen in the overworld so far.

What do you think it is – new Pokemon, old Pokemon, or just a grey blob?