Okay, i felt the last thread had potential to be constructive but it became a name calling chaotic mess. Lets try again, please keep this on track.
As a PVP player, i would thoroughly enjoy new maps per BG. They can be the exact same BG but just a different map. This doesnt have to be done with all of them, maybe keep the 40 man BG's the way they are, but add a few for wsg, ab, eots, sota.
They would never 'die out' because when you queue, you would queue for the style of bg, but not the exact map (ie. same way arenas work, queue for arenas and get 1 of 5 randomly)
This would not lengthen queues whatsoever.
CONS:
1. WoW is a PVE game.
It has been established that this game was originally a PVE game with PVP as an afterthought. There is no debate on that. But, Blizzard was happy with PVP, the players were happy, and eventually PVP became a very large part of this game. WoW has evolved a lot over the years. Though it is STILL PVE centric, the PVP aspect has grown a lot. Blizzard spends a lot of time trying to please both the PVE and PVP players seperately.
2. The BG's would ruin the lore
I really can't comment on this much, i really have no knowledge at all about the lore. I can see how things wouldnt make sense if they added more bg's. If you know the lore, please add to why it would make/break this idea.
3. Plenty of world PVP zones
World PVP can be completely hit and miss. Depending on your server and faction, it can be amazing or frustrating. Also, most of the 'PVP zones' are completely dead. Nobody goes and defends nagrand or silithus anymore. So this is kind of a moot point in that aspect. WG was a decent attempt at world PVP but it failed in several ways. I salute blizzard for attempting none the less.
4. Balancing issues
Could be difficult to make maps without one side having an advantage, but this can be relatively easy to avoid.
PROS:
1. The old maps are worn out
This is the truth. I have played this game since vanilla and the old maps really are getting extremely boring. I love to do pvp whether its world, arenas or bgs, but eventually after doing it so much it just gets kind of old. It would be the same feeling for PVE players if for the next year blizzard didnt add any pve content. I know theres differences here, as in pvp is always different, premades, etc. But from a visual stand point, I've seen all of these bg's so many times now its losing its fun.
2. Promotes more PVP
With the addition of new maps, it could POSSIBLY give more people reason to PVP. Maybe they really like a certain BG from the way it looks, is set up, lore stand point etc. Also for the veteran players who have been around since vanilla, maybe some new maps would reignite a passion to hop in the BG's again.
3. Rated BG's
With the release of cataclysm we are going to finally see a rated BG system. With the rated BG's, i would assume more people are going to pvp. It wouldnt be as frustrating as arenas because we wouldnt see the distinct imbalances of comps and classes. With arenas, you can honestly make a strong guess to whether or not you are going to win as soon as the gates open. Also, people who are not 2200 capable would still have fun competing vs feeling completely useless. Thus, i think this will increase the PVP player base.
A couple other points id like to hit on.
PVP has killed itself with the introduction of rating requirements. Before you could get your gear whether you succeeded or not. Now, that is simply not the case. Therefore its causing a huge imbalance between players. The skilled players are already better than the less skilled, and then they get the better gear. Now they are better geared, and more skillful. Its creating a lot of competition among the higher tiers in rating, while destroying the lower tiers, which i am going to say is the average player.
With this problem in PVP, the PVE community has grown a lot. It is MUCH easier to get great PVE gear than it is to get great PVP gear. With PVE gear all you have to really do is put in the time. do the daily heroic, the first four bosses in ICC, etc. Though you wont get LK loot you still feel like you are improving. I really think that this has lead the players unsuccessful in PVP to divert to PVE. You are rewarded mostly on effort vs success. (not talking about heroic loot, that is another discussion)
Theres more id like to add but this is already a huge Wall of Text. So please let me know your thoughts. Basically i feel that with cata we are going to see a larger influx to the PVP community and I would love to see some new scenery for the same old style of bg's.