Apple Arcade is getting BIG money poured into it. There are currently titles in the works that are aiming to rival the likes of Breath of the Wild, which is why new A12X/Z AppleTV, "A14X-like" AppleTV, and Controller are in the works. Some games will require A13 and up to run.
An A14 processor would offer a significant speed bump compared to the A10X Fusion chip in the current Apple TV 4K. The first benchmarks from the A14 in the iPad Air 4 allegedly surfaced on Geekbench yesterday. You can check those out here.
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