Yes. That's what we have been told.
Yes, but to be fair, it's worth noting that someone here posted a reply to DM saying that he will probably do Ep5, but it will be a purely technical split of the episode due to too much weight of the game archive. But unlike in previous years, where this was also practiced, I think that we may be waiting not for the usual “Ep4v16”, but, for example, Ep4 v10, after which this very ep4 split will take place and the remaining 6 (or rather even less) updates will be placed into "Ep5".