They didn't really seem that bothered by Styrak dying (and I watched that fight and him turning into a giant is hilarious) and that article says they can likely still do their thing so they don't need all of them to be badass. I still don't really understand how they were captured so easily though....
Also I just remembered that thing where they killed everyone within a quarter mile of them almost immediately after they arrived on Belsavis.
No knew class storylines. I have a feeling the Dread Masters will be the next big release and then hopefully we'll have Vitiate coming back and getting apocalyptic on everyone.