W[M^T]W horizontal centre channel or JohnK's similar driver complement for a horizontal centre properly executed.

I think Axiom hits the sweet spot when it comes to price/performance.
While the cabinet could certainly be more fancy (therefore increasing the cost), they are not by all means bad looking speakers, specially for those that can afford the real wood veneer and now on the V3s without the pin holes thanks to the magnetic grills.
There is 2 cosmetic changes that I would like to have that wouldn't necessarily bring the cost up. The first is that it would be nice if Axiom would find a way to keep the hex screws that attach the drivers more recessed into the cabinet instead of sticking out the way they do, the speakers would look nicer. The second is that while on most Axiom speakers the drivers are recessed into the cabinet and almost flush with the face, it is not the case for the top and bottom drivers of the QS8s, the drivers sticks out of the cabinet. Whenever I can (or let say whenever my 2 year old is not around for a few days), I like to have the grills off. I then remove all the grills except the top and bottom of the QS8s, it just doesn't look good seeing these drivers sticking out the way they do.
These are 2 minor things but to me the speakers would look much nicer if it would be changed.

I vote for continuing to improve each existing product as they currently do.

I would like to see a new 2 channel amp to come out that knocks the socks off the competition.

I'd like to see a beefier version of the QS8's able to play a bit lower in the Hz. Kind of like they did with the VP-180 but maybe not on quite that scale.

A QS10 will do - no need for a QS180!

Some cheaper wood speaker stands would be welcome, and outriggers for the tower speakers are mentioned quite often. I'm still waiting to see QS4/QS8 speakers with a mounting option similar to the M0 On-Walls.

Like David, I definitely want to see them come back with new amplifiers.

As it is, I'm going to be spending more money with what they already offer. I'm going to try a VP180 sometime soon and see if I can be satisfied with a horizontal center channel. I'll probably end up with a second, assuming it meets my needs, whenever my system ends up in the basement. I'll probably end up with a pair of the on-walls or whatever in the bathroom, too... eventually. In the meantime, I'm certainly enjoying what I already have. It's still fun to show my system off to guests.

I'd like to see this, too. Not that I feel dissatisfied with the QS8s. I just want to see if I can actually tell a difference.

I'd want Ian to invent a time machine, travel forward 50 years, and bring back Axiom's then-current speaker technology to our time.

Winner!

^^^^^^^
Yes yes yes
I don't post much but that is the best idea so far. A center channel that has GREAT on AND off axis response in a must. I have to admit that my 150 was a disappointment. However the m2 that replaced it is fabulous!! Now just put a bass driver on either side of the m2!

I'm quite sure Ian considered many different driver and cabinet configurations while developing the VP180. So, product-line-wise, I'm not sure if you're looking for a replacement of the VP150 or something else? Because I think it's pretty clear they don't need to market 4 center channels.

"Improvement" is obviously subjective. I agree with most of what's already been written. Since this wasn't really titled as a "new product" thread, I suppose we're looking for "how can current products be 'better'". Speakers really only do a couple things to begin with - emit sound, and provide a visual appeal.

So, you obviously want them to sound better and look better, right. Well, Ian is constantly working to make them sound better in the context of their established market niche and business philosophy. We've seen those incremental changes over the years. And introduction of the Custom Finish shop provides more flexibility than virtually any other manufacturer, certainly at this price point.

So, I don't see how you could have meaningful "improvement" without fundamentally altering the basic nature of the products. On a certain level, if you don't like the way Axiom speakers already look or sound, I don't think it's terribly likely that any "improvements" are going to change your mind.