Guild Wars 2

I think it totally is possible, and something that would help future-proof the game, given the recent surge in VR displays.

The character does not need to be only partially rendered. You could render the whole character and position the camera in front of the characters face, with the character rotating as the camera rotates. Also, there is no problem with rendering just the arms and torso. That’s what elder scrolls games do, and it worked fine for them. Additionally the player’s shadow does not need to be rendered when in first person.

You don’t need to replace the animations to be exactly the same as third person. I use leaping death blossom on thief all the time in first person. Most people would rather see hands and daggers attacking that look cool, rather than just seeing nothing due to a completely transparent character.

Head bobbing and shaking can be eliminated by restricting how much the camera moves. Since head bobbing is predictable, aggressive camera movements can be isolated and removed in first-person.

It would be awesome to have a fleshed out first person view. With ESO, the developers originally planned to have a only a third person view, but when the community asked for a full first-person they added it in at the last minute, so that shows how a mmo designed for third person can have first person successfully integrated. If a real first person perspective was developed for GuildWars2, it would be well worth buying another expansion just for the increased immersion.