Every country in the world is going to require millions of them for data centres that are currently being planned or under construction. The market for NVIDIA chips is going to be strong for a long time to come.
And Nvidia is more than a chip company. They are a software and network company. As an example, they have more software engineers than hardware. Their CUDA environment leads the AI deployment systems. It compiles a number of languages for AI use on their chips. Their purchase of Mellanox gave them the fast network technology for data centers.