Vivo is allegedly working on a flagship smartphone that will run Samsung's Exynos 2100 chipset. The mystery device will also feature some 'very scary' Samsung hardware. This is very likely referencing a new Vivo Nex series smartphone aka Vivo Nex 5.
https://www.notebookcheck.net/Exynos-2100-powered-Vivo-flagship-smartphone-reportedly-in-the-works.522412.0.html