No Nvidia there as that comes with too much Vendor Lock-in there and really Imagination's PowerVR Photon GPU micro-architecture is better there as Imagination has been including Ray Tracing hardware since 2014 long before Nvidia's Turing/RTX.
I'll just go with whatever Qualcomm/Nuvia offers for phones with whatever GPU/Ray Tracing and AI IP that Qualcomm provides for that.
MediaTek has reportedly joined forces with Nvidia to develop mobile GPUs for smartphones. One could get to see it in action as early as 2024 alongside the Dimensity 9400.