You know like Leader Co Leader Admin Moderator of the guild something like that
Benefits-
Give the Co Leader in the guild thread actual power
Makes people work more in guilds
More control on whats happening
It will make people actually have a goal unlike just making gp thats boring
Cons
Power Abuse
Other Suggestions-
Guild WARS - Two guilds figthing eachother in pvp 4 on each team. The win or loss would be ranked if your guild is the best or not. Your stats can be reset by a item in the shop you have to be the guild leader though.
Guild Prizes - Like when you win a fight your guild gets exp so when you win a lot of matches you level. If your guild level or just win a fight you get a certain amount of gigas but not that much like 1k. What do you do if you level you may ask when you level you have bragging rights and it will be shown on the rankings.
Guild lvls1-100
The higher the lvl the more members you can get
Ranks in guild.
Co-leader
Can kick, do applys and has guild notice rights
Ranked
Can do guild notices
Normal rank
Just like it is now
About the prices, maybe when you earn enough points you can spend guild points or pvp guild points on guild expansions or other guild benefits
something like that