I believe to help maintain a larger number of players all interacting with each other at different levels of the game, the cluster layout should combine both PVP and PVE from all regions of the world all on one cluster. The layout could have specified PVE grids and PVP grids so those that primarily want PVE could venture out into PVP from time to time, all areas could have access to common and fine blueprint mats, maybe even journeyman as well. The higher level mats for Masterwork and above be populated in the PVP regions (more difficult to obtain). You could set it up where power stones and essences were either split between PVP and PVE or have one tier in PVE and a more difficult tier in PVP. Along with these suggestions I'm sure there are many more possibilities with a similar setup but something has to be done to increase the number of players on the same map. With 4 official servers all under 1000 or even under 600 players the experience is really falling apart.
