I fear that the current prices do not reflect the wealth in the economy and demand for the new wards far exceeds that which will be available in the 12 wards.
SE please double the amount of wards available (for all districts) and double the prices of land in the new zone. The new zone is premium property and the pricing should reflect that.
This will give people options as to having cheaper housing in old zones with more plots available and also with the moving feature the ability to move to the new zone when wealth increases.
I can foresee ward instance crashes once the launch of housing comes out without taking more measures such as price increases and increased wards,