HoT will probably bring more people to the game, and will probably bring more people to WvW, but it will do nothing to fix what is a massively broken server system. ANet does not have a solution to server stacking and lopsided timezone coverage. They know it’s a serious flaw in WvW, if they had a solution it would have rolled out with HoT, they did address the need for a new map, and the need to emphasize defending. What is really scarey is the prospect that a surge of new players will come to the game with HoT and they will all be directed to the low pop servers, thus creating servers with almost no experienced WvW players…
I sympathize with the Devs on this one, there is no easy fix and all of the kittenes entrail hosts of other problems with them… It would be a tremendous amount of work to adopt a “Alliance” based system so that is probably off the table. If they could figure out a way to de-incentivize server stacking the problem would be significantly reduced, but the entire glicko/WvW tournaments not only incentivize server stacking, they basically require it.