Personally im looking at the competition aspect. So lets say add a privilege to allow people to change settings to a competition. So using pvp as the example,
"Initiate Competition"
Set the limit (Set a number of successful wins against a guild mate needed to win the competiton)<-- should have a cap
Max participants (Only those opting in will be able to attack or be attacked)<--- capped increased through level of the building possibly?
Time limit (Possibly be able to tweak this to go say 4-12 hours, don't think you need more time than that)
Reward (I hate it, but maybe only offer a capped reward of fsp only maybe 5-10 to keep it simple and a little enticing)
Toggle Buffs or not
Toggle Enhancements or not
Cost of the competition (Determined by the number of participants/set attacks/time)
That's an example of the more competition based aspect of this i like and would vote for. Also some ideas for it,
No level restrictions
If you lose an attack either (a) lose a point or (
like a gvg you would be say 48/50 for missing 2 attacks giving a guildie the chance to still beat you
Possibly add a form or "Guild Prestige" and make the competition mirror that of the ladder (I would like have multiple ways of competing not just be a one and done situation)
Everyone loves medals (Earn your "King of the Castle" medal through number of competition wins) <--- I know it can be bought essentially but would be awesome to have some sort of recognition for a "outsider looking in"
Personally the more features you can tweak and different versions you could ultimately run would be awesome. Thats what i could come up with for the meantime.