One should not hope that there will be more opportunities to hunt different species of buffalo in the future, on the contrary.
Hunting in South and Southeast Asia is over and will no longer come, and with them the opportunities to hunt buffalo, among other things. We can be satisfied that we still have Africa where the buffalo hunting, among other things, is still guaranteed for a certain time.
Australia is there too, although I don't see this continent as a full replacement for the lost Asian hunting grounds. A lot is missing to have the same flair, among other things also the many game species that one encounters in South and Southeast Asia.