I don't remember the source but on twitter saw that internal documents shows that developers in Ethereum are doing intense testings and hard work without doing it public. They are not only aware of the situation but also are concerned to remain fully in the game as important player. If these things are true is big news and tactic to keep the interest fully in it.
True or not, Vitalik keeps postponing the release of Casper and by the way POS and all those improvements won't change the facts that dapps are shit, icos are over, and the ledger has already grown out of proportion for the stupidiest reasons.
Short this piece of shit until it hits 90$.