After working on the proof-of-stake transition for around seven years, Buterin finally remarked that the Merge is ‘very close to happening’ at this point.
Merge months: August, September, or October
The co-founder acknowledged, “If there are no problems then the merge will happen in August. But of course, there’s always a risk of problems. There’s also a risk of delays. And so September is possible and October is possible as well.”
That said, Ethereum developers have already set June 8 as the date for the biggest testnet merge on the Ropsten network.
Ropsten testnet is getting merged on June 8! Merging Ropsten is a huge testing milestone towards Ethereum's mainnet merge later this year.