I go back to what, for me, is still the crux of the matter: the E mount system is not mature enough to be "convincing" to many potential users or buyers. Perception plays a very important role in this too. People in general do not yet perceive Sony as a "photographic name"; they may know that Sony makes some nice cameras, but it is actually difficult to understand what works with what... A mount, E mount, APSC, FF, adapters... is it NEX, Alpha, E, FE... it's almost like a deterrent:)
They need to sort out this mess, and instil confidence. A mount users and E mount APSC users are feeling a little like left overs and abandoned, to say the least... Sony is skilled at riding the "flavour of the moment", but people also like long term stability. After all, it can not be easy to switch from a well established system, to a system that feels like "half baked". It certainly was not easy for me; I waited 2 years before moving from Canon to Sony. I was of course attracted by a system that offered FF in a compact and high quality package. I do not shoot anything demanding in terms of action, my main interest is landscape and travel. Again, smaller, lighter, and no quality compromise.
It would be nice to see Sony cleaning out their house; it would be nice to see Sony completing at least one of their lens lines, be it f1.8, f1.4, or f2.0 lenses... at the moment, it is just a pot shot strategy, launching several lens lines concurrently, but failing, after 2 years, to complete even one of them. Thankfully, I do not demand a lot of lenses, and the ones I want, are available...