Well i like mid rate servers such as x70 with hard enchant like L2Elite (ex. rate 44%) cause i believe enchant is one the main features of Lineage 2 and its bad to waste it. Avoid farm zones and shit like that, i prefer adena for economy. Some custom features that wont make server look like star wars. Avoid community boards and shit like that too, i prefer old style NPC's.
Avoid custom weapons (I hate them so much). By default Freya is a very beautiful and "balanced" chronicle without star wars skills like chain heal e.t.c that.
In question if it will attract people, i believe yes. In my opinion the advantage of freya is that nobody tried to work with it cause they jump from 1 "main" chronicle to the other and skip smaller one. So if you make it decent it will attract population and won't have much competition. So if you want to play in a freya hold few days until i finish with my partner and ill let you know. You can follow me on maxcheaters to have new info when i make topic.