Confused ESO Players Wondering Why Zenimax Doesn't Release Solid Long Term Roadmaps

We've covered the saga of the Lost Depths PTS quite extensively on ESO-Hub, and even though the final PTS patch notes have now been out for a couple of days, it seems that it still isn't over. Due to strange manner in which Zenimax have repeatedly changed the combat systems of the game in this PTS cycle, with seemingly no rhyme or rhythm, while also sometimes making slightly vague references to an internal plan they have that is justifying all of this, some players have been voicing their confusion and disillusionment with the game and asking why Zenimax can't just tell the players exactly what this plan is, perhaps in the form of a one or two year roadmap. 

ESO Lost Depths

Should Zenimax Release a Roadmap for ESO?