My room is 11.5 x 11.5 x 9.5. I have the Sabrina X’s about 2 ft from the front wall and 3 from each side. no room treatments. They are powered by a Pass 250.8, with an ARC REF 6 pre and an MSB Discrete DAC and Premier power base, a REL S/510 and a full loom of Shunyata Alpha V1 cables. In my small listening room, they sound fantastic and I have no interest in replacing them.
Before you get upgrade-itis for new speakers, I would work with the room first, and maybe consider the Sabrina X’s, since you like your Wilsons, if you must get new speakers. If you are looking for a new sound, there are a ton of choices in your price range. Check out the Joseph Audio Perspectives . . . Very easy placement and sound great too.