Several questions are answered in this particular batch, but two topics are featured regarding the major changes to the Protoss ability from the original known as hallucination and the Zerg's Queen.

The goal of the developers is to make hallucination more useful unlike in the original. The Protoss will now have the ability to create units in which the player doesn't even have the prerequisite buildings for, Yu said.

The amount this ability can be used will be determined by that cost of that particular unit. However, certain more powerful units like Carriers and Dark Templars cannot be hallucinated because of their strength.

The major changes for the Queen has to do with her ability to create mutant larva. With these larva, units can be created around hatcheries at a discounted rate. This along with her ability to defend against air units early in the game make her a crucial unit to have, Yu said.

Here is a sample of some of the questions:

Are there abilities that remove creep? (TheWarCenter)
- The 2 ways to push that expanding creep is to kill the burrowed creep tumors, or kill those Queens building them. On another note, the creep no longer damages enemy buildings. Through testing, the ability actually affected players adversely in team games where players allied with Zerg players would end up having their units damaged by their friend’s creep. In 1vs1 matches, the usefulness of this mechanic was hardly ever used, amongst all the new cooler Zerg strategies that have spawned.

Is the Thor still an anti-air unit? Does it fulfill this role effectively? - Thelorme (Battle.net)
- Yes, it is still an anti-air unit with the longest range against air units of any unit in StarCraft II. Visually, we are moving to give the Thor anti-air missiles that will fire from his shoulders, unleashing a devastating barrage from a remarkable range.

Many more questions are answered about the Colossus, Medivac, and various other topics. You can read more of the questions by clicking here