Not too many more opportunities for new nations to qualify prior to the end of this year. We are down to four more direct qualifying events.
World Artistic Gymnastics Championships - Very unlikely to qualify a new nation, the best chances IMO would be Turkiye in the men and Canada in the women, but again it's very unlikely.
European Women's Handball Championship - Again unlikely with the best chances going to Hungary or Montenegro.
Shooting Championship of the Americas - We could see a few nations qualify. The United States will eat a lot of the quotas (assuming they are sending a relatively strong team), but I suspect we will see Cuba and/or Mexico qualify their first athletes. There are a few other individuals (Argentina, Canada, Chile, Ecuador, Guatemala, Peru, Puerto Rico) which could also qualify.
Urban Cycling World Championship - This is for BMX Park. This event despite occurring first is of a lower priority, but until the Olympic Qualifier Series is completed the quotas will likely be awarded to an already qualified nation. Perhaps Argentina, Costa Rica or Croatia might surprise.