The WNBA will see a bump, and already has seen a bump, in viewership, ticket/jersey sales, etc. thanks to Clark. They will capitalize on it and try to milk it for as long as they can. Once the dust settles as the novelty/lustre wears off, the WNBA will continue to carve its niche, albeit one that quite possibly will be a bigger slice of the pie than the NHL.
If anything, now with a generational talent coming through and talks of expansion, at least the WNBA should be on more solid ground than ever bigger. Especially with the appetite and desire for women's sports likely higher than it has ever been before. Will be an interesting case study to follow, similar to the PWHL, not just short term, but over the next 3/5/10 years to see just how far they have come along and what kind of dent (if any) they can put into the male-dominated sporting share.