The current decision (which can change anytime) is that we're going to meet on old nostalrius pvp realm (since its going to launch first). We're going to talk to people , meet again and coordinate. As it seems to be the popular choice, we can go to the fresh pvp server, and we're going to be making a world-pvp guild, we will be leveling normally, but we will have world-pvp events as priority. We will see how things go and maybe move to crestfall as a guild altogether, or stay in the elynost realm if the vast majority insists on doing so.
Depending whether we're leaning on 1)Playing in elynost until crestfall releases, or 2)Playing in elynost for good, we will probably either :
1)Make a guild focused on pure world-pvp in redridge mountains (and other zones sometimes), likely to stay at level 18-28 range, or continue to level but slowly. It will be something like <Redridge Clan>, known to inhabit this specific zone, and our purpose is to fight the whole time in attempts to completely conquer it and make it more like a horde zone rather than an alliance zone
I did the above on kronos 2, without putting much effort in recruitment, and with many people already being level 60, and we still managed to get 10 people online at the same time, multiple times, at the range of level 18-26, it was great fun. Imagine what will be done, in the frest pvp realm, which is likely to be 3 times more populated, everyone being low level, world-pvp community/ex-red dawn meeting up again, and with me tryharding on recruitment, I can safely say we will be having 40-man raids in redridge almost everyday

At the end we will move to crestfall when it launches, and play normally, world-pvping but leveling quite aswell, then doing some PvE progression at lvl 60 (ocassional world-pvp events at all times ofcourse)
Or
2) If we stay in elynost for good, we will be leveling up significantly faster, and there will be world-pvp events during leveling, on all zones. At level 60 we will do PvE progression, raids, and again world-pvp events (a good balance between PvE and World-PvP). We're still gonna check out on crestfall release when it comes, though