Masteria Expansions, Names and the proof for each

Prose said something about other areas (like affluent tower) being "expanded" storyline wise with CWK, what's the deal with that?

Well I can't be sure about that, but I don't think he meant Affluent specifically.

We learned a LOT about Krakia in this patch. Before, all we knew was it was a lost town in the jungle that produced our Turkey Soldiers at thanksgiving. That gave us all the misconception that it was a really high tech place. TCG set 3 revealed that The Krakians (And thus Krakia) eliminated the Taru, which meant they existed in old times.

Now, we know that it was under the manipulation of the Alchemist, who experiments on anyone and anything, and created the Headless Horseman. We know that not only did they wipe out the Taru, but the Krakians also fought with Crimsonwood, which was an idea no one had previously suggested. We didn't know what the Krakians were, but we knew they weren't human. Now we know that they're sentient, strong, huge plant-people.

We also got a bit more expansion on bigger ben/MesoGears in particular, that the tomb of Crimsonheart is not opened and so we've got that to look forward to as well. Can't really think of any other areas though.