Mikko Jaakkola said, on Twitter, at the end of September of last year that the bootloaders will be unlocked and also the kernel sources released, now, 10 months are passed and not a word, considering that other manifacturers do it in less time, is it still in Nokia plans?
Well, HMD have released some kernel sources but not all. You are right that so not bootloader unlock process has been provided.
For everyone's information, the Android phones include in the legal info section of the settings the statement that HMD will provide the source code on written request. Just send your request to "Source Code Requests, Legal Department, HMD Global Oy, Karaporrti 2, 02610 Espoo, Finland".