On my server, nearly a dozen regions are taken over by beastmen in Conquest, as they were last week, and the week before that. It's not always the same areas, but the number stays around the same.
This is problematic because an individual has basically no power to influence most regions. For some, with high enough level mobs (level 100+), it might be possible to, over the course of a week, gain influence by chain killing for hours there.
For others, without mobs that high level, I don't know what the recourse is. Beastmen influence doesn't seem to be lower-able, and if the Beastmen are in control, the ONLY things you can do to gain influence are: gain Conquest Points, or do Expenditionary Force. There's no Garrison, there's no trading in equipment or other items.
Conquest Points are problematic because the system was designed with a sizable server population leveling in those areas, which is no longer the case, complicated further by EXP gained from Records of Eminence or Grounds of Valor not giving Conquest Points, which in turn mean no influence gained.
Expenditionary Force simply isn't do-able in its current state. Getting 3+ other people from the same nation together for hours with basically no material rewards isn't going to happen. It was rare enough back in the Zilart era.
I really don't even know what to suggest for alleviating this. Make sure there are level 100+ mobs in every zone? I know Kolshushu has 96-98 skeletons in Labyrinth of Onzozo as its highest. But I don't know if that would be enough.