I remember when you ask player for name of this 3 worlds , but still not W3 .
I want to make a suggestion , W2 is have loot of bonus , realy easy to grow
Whay dont create W3 to be a very fast world , but also to be reset evry 6 weeks .
Top 10 ( or 20 ) players to get a global reword , gold , mage spells , bonus castle or some troops .
I think 90% of players will play this fast world .
Also add bonus castle on this W3 and players will attack this bonus castle for exp or glory , so rank will be Exp or Glory
Now on W1/W2 players make a ceck in per day , becouse you dont have what to doo , stable or catapults need 3-5 days to lvl up , just ceck for new grey castle ond go off
So my personal opinion this fast world will make players to be more active , more fight
Stay safe , have fun