I think just like any winner (except probably Bianca because she had 20 years of experience already) all queens have benefited from years of experience after winning.
I would like to see winners such as Lawrence, Priyanka, Envy Peru come back after a few years of getting their art perfected and making their win really worth it. They're young, they grew up watching the show and I feel like their win is the start of their career and I would like to see what happens after a few years in the industry.
I mentionned those 3 because they're the latest ones, but I can mention Violet who really grew a lot since winning or even Bob who improved in so many areas since S8. And Bebe showed a lot of growth in AS3.