Blizzcon is just around the corner and Karune just published Q&A batch 8. The information they published this time aren't as informational as the other times, but as he states, then we will get loads of more information at the event
When looking at the 3 first questions we can see that it is still very similar to our beloved game StarCraft:
1) Will there be upkeep in StarCraft II?
No, there will not be.
2) What will be the highest number of upgrades for the shields, armor or weapons?
Currently, the highest number of upgrades per weapon/armor/shield type will be 3, which is the same as the original StarCraft. The values of each upgrade will be determined through much balance testing.
3) Will the StarCraft II Editor be easy or hard to use?
Blizzard game editors have always been aimed at empowering the community to create a huge variety of fun game modes and maps. This editor will be no different.
The editor for StarCraft II will be very easy to use for new players to create their own custom maps and games. Furthermore, this editor will have many more scripting options available to players, to allow for even more player creativity in their maps beyond that seen in prior RTS titles such as Warcraft III.
In question 4 Karune reveals that the unit Zealot's 'charge ability', will make the unit move faster, but without causing more damage and at last question he says to that the Phase Prisms have a third yellow meter below their shields and health that they are used for storage capacity, and also serves as an aerial transport unit. What this means we are not sure of, but it sounds like it is kind of mana that you have seen from other types of their games.
He also says that in the next Q&A batch, we will get more information about Warp-In' system, along with info about the race Terran.
Links
Blizzard.com - Q&A batch 8
