I would like to suggest that you add Avatars that would randomly spawn and roam the map for a short time. They would attack players they see and also drop great loot if they were destroyed. Player dedicated to that god could not be attacked or attack that avatar.
I also suggest adding a Wyvern type creature that fles around that map and makes it more important to have ranged. I suggest this be a boss type creature of equal or slightly less hit point as the tiger.