Is MedPenning yourself in a downed state still a planned feature?

Yes, that is still a planned feature, and the plan is to move it to the AdrenaPen. So basically, if you get downed, you'll enter a down-but-not-out state. That's also fully implemented in Squadron. But Squadron has expensive self-revive pens. It's obviously MMO, single-player game. But yes, so that is still planned. And let me just check my notes, see if there's any other caveats there.

You'll need an AdrenaPen for rezzing other players as well.

Yes, that's the other bit. You'll need the AdrenaPen for other people. So you can crawl around on the floor, traditional down but not out.