BTE Week 8 is up! http://www.comicbookresources.com/?page=article&id=18931

What we learned:
-No plans for Santiago appearing on the show
-Santiago's base power is accelerated probability; the speed is just a byproduct
-HRG will have a crucial role in "Fugitives"
-No plans for Barbara appearing on the show yet
-Matt's mother will be explored in a future season
-The origin of the catalyst will be explained in 3.12 "Our Father"
-The new 9th Wonders were by Isaac Mendez, drawn way ahead of the printing date, to be explained by Seth Green's character Sam in 3.11
-It was Arthur's intent when mind-wiping Hiro to erase all memories of the "spirit walk," not turn him into a ten year old
-It is hinted at that the Usutu visions are part of Matt's power
-The story behind the Earth exploding paintings will be told (HERO's question, as 'Roesian)

Pretty good brownies. Not as many long-awaited answers/BTE exclusive answers as we've received in the last few weeks, but still pretty interesting tidbits. And it's good to know that those murals will be explained.

I was happy to get at least a partial answer to my questions. Thanks CBR!