The USHL will more than likely be fine. I dont see any of the USHL teams under USAH jurisdiction moving to the CHL under Hockey Canada. This opens up more recruitment options for US born & based players in the WHL, USHL, and OHL regions if the NCAA barrier breaks down. Organizations like Chicago, Fargo, Green Bay, Muskegon, Dubuque, Waterloo, etc. in the USHL are really good NCAA & junior development programs outside of NTDP & WHL/OHL that will now be able to recruit and incentivize Americans that would otherwise go the CHL route, to play in the top US junior league and retain their NCAA rights. Much of the US born college/junior player base spends more time developing in lower levels such as AAA, USHS Prep/State, and the NAHL & NCDC junior leagues before jumping up to to the USHL, NCAA, or CHL, so now all of these leagues with US based teams will have access to a bigger, older & further developed player pool.
BCHL will take a hit in recruitment for sure, but remains to be seen what degree and what will come of independence or returning to Hockey Canada. If NCAA barriers between junior leagues come down, theres the real possibility that the bigger BCHL teams with better junior facilities like Penticton, Chilliwack, Vernon, Brooks, etc. jump ship to the WHL similar to Wenatchee if they find theres no incentive to participate in a lower level junior circuit recruiting lower level players when they are Canadas best NCAA development programs.
USports is in a peculiar spot. It has never been seen as a premier development spot for any sort of junior or college hockey but more players that go this route are finding viable pro careers afterwards. I suspect it becomes more of a NCAA tweener league competing with D2/D3 schools, where players who cant crack a D1 roster for that season, or lower level kids coming from BCHL or CJHL leagues play out the year there before stepping into the NCAA transfer portal for D1 next season.