So I was searching on the progress of Ethereum Sharding (Ethereum's solution to scaling issues. If successful it is meant to be able to process more transactions than Visa! And so its a big deal) and found that Vitalik seemed to have indicated that it might be released soon! (See below link).
https://thenextweb.com/hardfork/2018/02/23/ethereum-vitalik-buterin-sharding/
However, his Twitter comment was removed by himself quite quickly for unknown reasons. But I'm quite surprised that it did nothing on the price...even for that brief moment. Perhaps it was too brief?
As to way he removed the comment, my personal thoughts are that he doesn't want the ETH price to "skyrocket" and then "collapse" if theres any issues on the release.