torontogirl, that is kind of where I see my style going. Not the skinny jeans, but ankle pantses in warmer weather and some of the wide or bootcuts worn over top of shoes in colder weather, with flat ankle boots in the mix.
I do tend towards neutral colored sneakers though ok for a bit of contrast detailing. My “ sneaker capsule “ might therefore evolve into the colors for my palette, but have to align with the right- fitting and silhouette of shoe. Grays, navies, olive, burgundy, oyster- and combinations. Of course might have room for a bright color at times! Like other clothing, there are seasons or years of colors that work, and dry spells.
If ever get able to attend a professional conference again, it would be just as audience manner- low stakes- and I could just as well wear a streamlined sneaker with business casual pants and jacket as I could loafers or oxfords.
It kind of comes down to what footwear deserves a place and deserves “ refreshing “.
One thing about sneakers- I prefer them to look fairly fresh, if worn as smart casual or the “ new” business casual, and so many styles can be harder to keep in that condition. Whereas one can polish and repair black leather loafers and boots, etc.