What should I upgrade next?

I am not a huge fan of B and W so now you know what I would change. Realistically speakers are so subjective that it might the least sense to you. You could always do the smart thing and save your money nfor a future need/desire.

Wow, nice system. Maybe you should spend some time/money on tweaking the room...

-RW-

I don't like those speakers either so I would change those out. Plus they do seem the most dated of everything you have. If you love B&W then maybe the new diamond version which I have not heard.

I heard the 802ds in a system where they replaced the 802s and I thought it was a significant upgrade (in the high end, of course). Otherwise, have not heard any of the other components. I AM a fan of computer audio, so you might explore in that direction.

What do you think your weakest component is? If not that, then what do you want to improve? Personally, I don't like your speakers. It doesn't really matter what I think, though. You're the one who has to listen to them.

I will say that your speakers and electronics are pretty well matched. It would be a good idea to focus on specifically what you want to improve. If you upgrade something without being sure, you can easily make a mistake.