I can. Think more on a realistic basis, you'll prolly see a major amplification in realism as far as physics go. We're already at the graphics thing, hell technically within the end of this year it would be possible to make a game with ingame graphics at the same level as the film graphics in Final Fantasy : The Spirits Within. Then of course you've got multiple VR elements, whether they'll use a helmet or mask or 'eyepiece' later, or whether someone will invent a way to send visual/audio data directly into a person's head via the eyes or something lol. Boy wouldn't that be interesting...