Ok, a little controversy.
I believe now that the point of the play test was to understand the essence of DnD, what about he game makes I'd D&D. For that WoTC gives us our thanks
But, I don't think they really overly concerned that we don't fully buy into the mechanics of the edition, as long as it holds true the the essence of the game. They know the core market place is horribly fragmented, intensely loyal to current games played and relatively small (maybe 1MM active buyers a year, double that actively playing). They will pick up decent revenue from us all (60% intenders in the poll), but they will not unite us under a single banner (it took a near RPG Apocalypse prior to 2000 to do that last time).
Instead, I believe that Hasbro is looking at several other pieces: the 25MM+ lapsed customers in the last 20+years, the rise of complex boardgames (Settlers 25MM+ copies sold), the disposable income of settled (no pun intended) families, and the value of the brand storytelling in an age where Marvel/DC comic movies dominate the box office.
I believe that the objective of the brand is to bring back 5MM players to the brand over the next 3-5 years by awakening the wonder and excitement of pretending to be an elf through a wide reaching transmedia experience: mobile games, computer games, kids entry toys, novels, online cartoons, rpg, movies.
Hasbro in short is building a product bring back lapsers to the brand first, then into the rpg/boardgame products. For that the game must be fast, enjoyable, lacking in complexity and adaptable to allow people to play concepts fueled at the table through other D&D properties.
TL;DR Hasrbo is building Next for the 25MM+ lapsed D&D players of the last 25+ years, not us long time players. They are not building a Holy Grail of D&D, they are building a quick easy game you can share with friends and family after dinner every Wednesday night for 2 hours.
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*we = active loyal gamers
publisher market 50MM, spend $100 per player per year, margin 50%