It's pretty clear that they don't want to go crazy with Hong Kong. I find this new mini-campaign stretch goal pretty damn good. Making the base game even larger with all the extra funding it's a very dangerous enterprise. You can fuck a lot your schedule by doing this, and also the paicing or even endanger the storyline (also, it would mean a notorious delay of the game). They have this campaign very clearly outlined, so adding a new campaign, as short as it might be, with a new storyline, is a good way to put all this extra funding to good use.
I was expecting before this kickstarter started something more ambicious, with stealth, astral plane, and all the good stuff, but when they reveled the inicial goal, and after all what they said until now, it's obvious that they just want to do for now a Dragonfall Director's Cut 2.0, which means tons of polishing mechanics and very small new features (although very useful, like being able to toggle turn based mode outside combat), and a small augmented scope. They didn't want to go crazy and make another Shadowrun Returns like experience (basically, falling short), so they kept their progression a bit more focused and controled.
Not a bad thing if you ask me.