Linux 4.10 has been in Rawhide since Monday and will be pushed as a stable update to Fedora 25 when the developers feel its stable enough, which will probably be around the Linux 4.10.2 point release. Fedora 24 will receive Linux 4.10 a few days after Fedora 25.
Fedora Rawhide meanwhile will be tracking Linux 4.11 development. While there was some speculation previously Fedora 26 would ship with Linux 4.10, their current trajectory is to ship F26 with Linux 4.11. Developer Justin Forbes relayed the information yesterday on the Fedora list.
Linux 4.11 has a lot of exciting improvements baking and Fedora 26 is planned for its official debut in June.