A 4K Roku streaming stick will reportedly be released this fall
https://www.theverge.com/circuitbreaker/2017/9/21/16344768/roku-4k-streaming-stick-new-remote-report
Roku will finally release a competitor to the Chromecast Ultra later this fall, according to a report from Zatz Not Funny. The new 4K Roku Streaming Stick+ will retain the actual stick design, according to the site, which has leaked numerous Roku and Amazon Fire TV announcements ahead of time over the recent years.
Roku will also reportedly release a new version of its remote as well, which features a slight redesign with new power and voice control buttons, and possibly more control over your TV via HDMI-CEC.