Which video player can play 1080p mkv on iPad Mini Retina?
Give AVPlayerHD a try. I can't say I've tested 10bit 1080p video on it with an iPad Mini Retina, but it used to work flawlessly for 10bit 720p video on an iPad 2. Since there's a big difference in specs between the two iPads, I don't think  you'll have issues playing your videos with that app.