Attack On Titan crossover, anyone?

I've been reading the manga of AOT ever since watching the anime; and it's all been... phenomenal! Zeke Yeager has always been my favorite, and the realization has only been strengthened. I've been wondering though: has anyone attempted an AOT crossover where the setting is AOT (but ponified), and completed it? I might be considering that project soon, but how to interlace that into the world of Equestria is a difficult thing. I guess we'll have to wait, for now.