What is contained in the Dungeon Defenders PlayStation Plus Free DLC?

On the PlayStation Blog's PS Store update for the Dungeon Defenders launch, it specifically cited that, in addition to releasing Dungeon Defenders itself, also available for download would be:

"Dungeon Defenders PlayStation Plus Exclusive DLC (Free & Exclusive to PlayStation Plus members )"

But I could not find any information about what this DLC actually IS. Does anyone know what this content is? There is nothing specified on the page except for that quote, and I was unable to find specific details of this DLC.

Solution 1:

A recent blog post clarifies this, the exclusive DLC consists of four familiars, three of which have slightly elevated stats for their level, and the fourth is a monkey who shoots enemies with his banana-guns... Yeah.

Solution 2:

The free add-on for PS Plus is pets that help attack enemies.