advertise on well known sites, and include things that would draw a crowd in, something thats different from all the other servers. and the sig/tag is a good idea aswell.
i agree with fuers, l2x is just a good memory now, it would ruin the memory to play on a server thats been remade at least 8 times by different/the same people. it will never be the original.
ive been hooked on lineage 2 for so long, other game's cant capture my attention like that, so im really looking forward to seeing what the makers of l2 will do for l3 :D