Before we get too concerned if the unreleased processor is obsolete or not, we might first consider how many people are interested in adding 2 more speakers to the front. Based on how many people added 2 more speakers to the sides/back, I say not very many. So not having a capability that few people are interested in does not make a product obsolete.

So while some number of enthusiasts may fret, even hard-core home theater fans like me will yawn over this.