What an amazing experience...loading onto a planet...
What I'm imagining is a bit of a retake on how SRVs currently work. You'll be in your cockpit, you look at your crotch panel (Role panel, what is the actual name of this panel btw?) you go over to the EVA tab, and hit 'Leave Ship', fade to black, the sound of an airlock cycling, etc, fade up to your character outside the airlock, a canned animation of your character either walking down the stairs (if the ship has one) or going down a ladder.
taptaptaptaptaptaptaptap, ok they are at the base of the stair or ladder facing away, and then you are giving control to walk around. reentering will be the same, you walk into the small square hologram at the base of the stairs/ladder, look on your hud and hit 'Board Ship' and a reverse of the canned animation,
taptaptaptaptaptaptaptap, air lock door, fade to black, sound of airlock cycling and back in cockpit all unseen of course.
Basically a reskin of the SRV workflow, not that there is anything wrong with that per se, but I'm just saying I'm not expecting anything miraculous here.