Well , clans are thing that is offline since 7 January 2011 , when the site wasa building. Now , here is my idea to clans:
Clan pages:
Basically , a clan page (like profile one) where clan members can chat , recruit , apply war with someone and other.
C(/K)onquer (:D):
Approved maps can be conquered (i cant write K..). Non Conquered map will show to clan members "Map is not conquered." and , clan wars on maps can make it conquered.
Clan wars:
Basically Team Deathmatch to 60 points , winner side takes the map. Conquered maps will show like "Map is conquered by Onion Clan.". "but what if clan go afk for 1001 years?" Well , maps are getting less conquered. If clan don't accept 3 wars on this map , or is inactive for a month , map are getting non-conquered.
That would make PB 2.5 a great thing.