OPPO VP Shen Yiren recently confirmed that there will be a Find X 2, but it will only be launched in 2020. The company is looking to add more innovative technologies to the upcoming flagship, so we can expect a dual-in-display selfie cam setup, plus quad or pent-cam setups with 10X optical zoom on the back, and maybe even wireless charging.
https://www.notebookcheck.net/Find-X-2-confirmed-by-OPPO-VP-scheduled-for-2020-release.426074.0.html