How much of this is going to be an issue going on? For starters, it's looking more and more like the (live-action) superhero movie trend is finally on its last legs, and while Top Gun did well I don't think that military action movies are going to have any sort of come-back. On the other hand, idk the current appetite of Chinese movie-goers for American films as Cold War II continues to drag on. In addition, the Chinese film industry doesn't seem to have taken the same hit from Covid as the American film industry did (due to the mostly competent response), so I don't know if there's a lot of room for a glut of US imports.
If I had to randomly pick a new trend to replace superhero movies, I'd probably guess it going to be video game adaptations with the success of the Mario Bros. movie. Video game movies have the potential for pre-built international cultural appeal, you have massive IP back catalogs that have yet to be tapped, and video game companies already have pre-developed merchandising networks to work with for those IPs. While some of those films would want DoD toys/money, a lot would probably prefer working with Chinese film studios or video game publishers.