Gogeun will see the integration of smart contracts this month.
What is gogeun?
It is a universal language framework to be used in future blockchain technologies, this technology is to reduce risk and security threats experienced by blockchain technologies
ADA will be launching two testnets. The KEVM testnet will be launched on the 28 May 2018. The IELE testnet virtual machine be launched in July 2018. ADA will allow users to experiment with the KEVM and IELE smart contracts.
Source:
https://cardanoroadmap.com/#goguen