I would have to say no unless there was some way to disable the person status generators. A large part of PVP is bluffing, seeing how much damage one person has taken, or what kind of potion effects they have would undoubtedly take a lot of the bluffing out of pvp. Not counting of course the effects of just looking around would probably show you someone with invisibility.
Sorry but unless there's a way to disable the player information side of this, I'm going to have to say no.