IMO the level ranges have nothing to do with the battlestations being dead. I think these problems have a lot more to do with it:
a. BS are side vs side, sometime there's 30 of one side and none of the other. result: no BS
b. BS are full of people who are there for different reasons and they piss eachother off. PvM-ers leave because they are ripped to shreads by everyone, PvP-ers leave because of the constant 4-capping PvM-ers, or because most of his side are PvM-ers who can't do anything. result: no more BS.
c. BS are totally boring. same map over and over, have to fight same people over and over. if one side has an advantage by having a lot of certain key professions, the other side can be sure that the next BS will have the same result as the previous one. So they don't sign up anymore, afterall what's the point ? result: no more BS for anyone.
If you want to revive BS, do one ore more of these:
1. scrap the whole side vs side idea it just doesn't work with such a low population even if it makes sense from a RP point of view. make it red vs blue or something.
2. randomize the sides, so that someone who was on the other side one round might be on your side the next. that way if you lost one round because the other side was overwhelmingly powerful, the next round won't be exactly the same ppl vs the same ppl and there will be a chance that your side wins next. this will result in people not leaving after having lost 1 or 2 rounds in a row
3. dump the whole VP rewards thing. or at least make it so those who do not want to go there, don't have to go there. don't mix pvp-ers with pvm-ers, that's just no fun for anyone. And for crying out loud don't give me the excuse that if you don't want to pvp then don't go to BS, because there's absolutely no way anyone can do without VPs. For many professions, they cant equip this symb or can't equip that weapon or they can't get 2001 CL or there's something they can't twink into if they don't have this or that ofab item. And LE missions are wrong on so many levels I don't even wanna get started on that
4. make more maps !!!
5. make more types of games, capture the flag is getting really boring now
6. use common sense! recognize already that the BS thing didn't work out the way you initially thought it out, accept it, change the RP story behind it and make it work