I find that very difficult to believe, considering the 0.4 poll hasn't happened yet. The poll that Grandjury posted on discord was just a "favourite char" poll, it has no bearing on the focus of the next update. That will be decided with a poll on his patreon after 0.3's release, only patrons above a certain level ($15 or more) can vote so it'll be a smaller pool.
As for release date, no official release date has EVER been given, Icstor said on discord he would "try" for the 28th May. This was before he lost a week due to illness, he hasn't missed any deadlines because he never gave any. Saying he'd try for a date is NOT a promise or a guarantee. Lot of people on discord are throwing out dates, but unless it comes from Icstor himself they just guessing.