One thing I have been wondering is how much expected to happen in a typical session. Now, I know the xp award section of the GM's chapter does give a rough estimate of how many encounters, but as definition of what a "major" encounter is a very subjective one, I think a note on how long the included adventure is expected to take would be a more useful indicator of expected character progression (especially if you are looking to downscale or upscale xp rewards to take account of actual play time)
So, how long is this adventure expected to take? Now, I know it is going to be different for every group (and how much dithering they do, or how thorough they are with all the possibilities), but was the intention that each episode would take a session, or was the entire adventure expected to be over in a session (or something else)?
I think part of the issue is the use of "episode". If I use episode in an RPG context I tend to mean a full adventure, ie a self contained story like a TV episode (I think this comes from the Buffy RPG, which uses TV terminology to illustrate plot structure, for obvious reasons), but in this it is used more along the lines of an "Act" of a story. However, to me it feels at least some of them are likely to be a thin for a whole 4 hour session, but the whole adventure feels like it would be a bit rushed (or at least very intense) done in a single session.