I believe that to create 2 separate PVP systems to try and please 2 different player populations is an error on your part. It may show that you dont have a clear vision of how the game should have its PVP system implemented in the future or at minimum are uncertain of it. I would ask, even though i know that it may not make much difference for me to ask this, that you continue with your previously decided PVP system as the rule of thumb for this patch and if needed adjust it further down the line and not segregate even more the low population of players that we currently have.
I also believe that when you keep pushing the PTR and wipe dates as you have been, its making you lose players to other games that are coming out of alpha and beta stages. This is something you will need to address internally from a marketing and management perspective. I predict a huge quantity of players now complaining about this delay again and quite a few, even, give up on investing any time into waiting for this.
Please review this internally and consider things before you make them... i bet that if you had asked the company/alliance leaders about their opinion on this 2 pvp system (where you still have the NA and EU separate also, making it a 4 pvp system) they would of told you in unison that they would disagree with this system.