HMD presented a roadmap of all those Nokia phones that are scheduled to receive Android 10 just after Google has officially announced Android 10.
Phones in the list that are scheduled to receive Android 10 (previously named as Android Q) in the last quarter of the present year are the Nokia 8.1, Nokia 9 PureView and Nokia 7.1.
After that, the firmware is supposed to be offered for the Nokia 1 Plus, Nokia 4.2, Nokia 8 Sirocco, Nokia 5.1 Plus, Nokia 3.2, Nokia 2.2 and Nokia 3.1 Plus in the first quarter of the coming year, 2020.
Android 10 will be released in the second quarter of 2020 for the Nokia 2.1, Nokia 5.1, Nokia 1 and Nokia 3.1.

A prominent phone not present in the roadmap is the Nokia 8 and the fans are very angry on Twitter. Now the security update period was increased till 2020 by HMD for the Nokia 8, but it seems that no big OS updates are on the way for this phone.
All we can do is wait and wish that Nokia 8 gets added in the eligibility list any time afterwards.