What will be the next developed species on the earth after homo sapiens sapiensor it is the last stage of development?

Most people believe it will be the members of the hominids in descending order of likelihood:

1. Chimpanzees
2. Bonobos
3. Gorillas
4. Orangutans
5. Gibbons

After them then the monkeys.

However, according to Terry Bisson it will be Bears.