The Thai regulator NBTC has approved an upcoming Huawei device called the NOH-NX9, revealing that it is in fact the Mate 40 Pro in the process. This model number has also popped up on the EEC and Bluetooth Special Interest Group (SIG) databases, suggesting that the premium phablet will indeed make its debut soon.
https://www.notebookcheck.net/The-Huawei-Mate-40-Pro-collects-certifications-on-its-way-to-launch.494750.0.html