I feel similar: The wishlist contained so many nice ideas, more than could be implemented for sure, but at least knowing that a few of them made it into the game would be nice:
Currently it seems that its just more stuff of what we already had and the removal of flaws of the game interface (i.e. less micromanaging). This sure is nice, but it
feels poor. 
I also disagree with Gandalf here: Sure, the game is not yet done, but I would not
expect major changes to be introduced at this stage? So if there are major changes in gameplay, why are they invisible in the screenshots? Deliberate?
As "
Major Changes" I would regard things like proper terrain effects or obstacle on the battle grounds, a new unit attribute, a new resource, proper modelling of the different native races within a province and their migration, new buildings with a proper function, a renewed yet manageable battle setup, etc. ...so anything which directly alters gameplay. Something that is not straightforward to guess and what would make me curious!
I am aware that there are major changes which might not be visible in the screenshots, like an overhauled resitances system putting an end to too easily achieving 100% invulnerability, or improved battle command control, so lets hope for something like that.
Sure, a streamlined interface is already well worth enough for me to order Dom!!! eventually, so this is moot anyway...