I'm tired of these people making others curious and anxious on social media to earn likes, retweets and popularity. If Vitalik knows something is going to happen, why can't he be more clear regards what it's going to happen? If the main purpose of his tweet is to enlight the audience, the information must be shared on its totality, not partially or vaguely.
I learned to consider this kind of tweet FUD, doesn't matter the subject in question.
I agree, I think when someone is both influential and famous as Vitalik Buterin, he/she should be more careful and transparent when talking to public, without that ambiguity that puts public in unnecessary uncertainty...