If this interview is anything to go by the goal is to make a less frustrating version of SCII. They're shooting for same feel of responsiveness while trying to simplify controls (automated control groups, quick macro panel) and lower lethality - something in between SC1 and Warcraft III. Also making terrain more important and less easy to subvert it. Quite a lot of things that I viewed as flaws in SC II were acknowledged here which does make me kinda hyped. Sure art style is probably gonna be shit, but I don't like SCII art style either yet still love the game.
I am a bit doubtful. I don't really like playing competitive sc, but as I see it one of the big problems with sc2 from a pro perspective is that it's just way too easy to play, what with all the fancy perfect pathfinding and responsive units and smartcasting and what not. This lead to units and spells being less impactful, because you can't have sc1 storms in sc2 without completely breaking everything. And it also made "just create a huge blob of units" a dominant strategy, because of course it's good when 100 units control just as well as 10 units. I also always hated spawn larva ability from queens. Feels like a chore. Just let me autocast that shit.
But this is speaking more as a spectator: Watching sc1 is often fun, I never enjoyed watching sc2.