One thing I find appealing about Ascend is the sense of corporate focus. Some companies try to do anything that they perceive they are technically able to do (AV123 anyone?). Ascend focuses on a small number of things and is able to EXECUTE (the stuff is technically superb and can be delivered to customers). Yes, some sub companies are trying to get in the speaker market, but would you buy them? Likewise, would you buy an Axiom sub? (Not saying its not good, but alot of people would prefer one made by "specialists.")
Whatever new project Ascend takes on, it should not require a blurring of focus. It should strongly complement current offerings and be complemented by them in turn. Most of all, it should always play to the CORE competency. (i.e. don't try to build amplifier/electronic products, maybe not subs, etc.)
I will reiterate my suggestion of some kind of multi-pole type surround. It would play to the technical strengths of the company, fill a hole in the product offerings, and have the potential to actually be "worth it" for the buyer. (Better performance at a lower price.) It also supports the other products. Maybe you could base it on TWO HTM-200s or something crazy like that, for even greater leveraging of the current line.