The four clans have become different, the prophecy was solved and complete and nothing bad happened but the clans did change thier ways.
First they changed thier names based off of the hero that was in thier clan

Dreamlake clan
Formerly riverclan
The clan hero is sweetpelt she can dream walk and enter others dreams

Healingforest clan
Formerly woodclan
The clan hero is coalpaw she can heal cats without using herbs but she must be touching the herbs 

Starmountian clan
Formerly mountianclan
The hero is (open) they are able to talk to starclan as they please

Readingripple clan
Formerly sandclan
The hero is leapardstar he can read others minds all except for those he loves and he often chooses not to

The clans have also develped enemies
Readingripple clan hate dreamlake clan
Starmountian clan is neutral and doesn't have any enemies and healingforest is enemies to both readingripple clan and dreamlake clan