Based on historical PlayStation release intervals of 5-7 years, a PlayStation 11 (PS11) could feasibly be released around 2060. This assumes Sony continues its current release pattern and maintains the PlayStation brand.
Each PlayStation generation has brought significant technological advancements. Assuming Moore's Law holds to some degree, albeit slowing down, and considering current trends in computing power, it's plausible that a PS11 in 2064 could feature exascale computing capabilities, reaching into the exaflops range (a thousand times more powerful than a teraflop).
This would represent a monumental leap in processing power, enabling unprecedented graphics and AI capabilities in gaming. However, the future landscape of gaming technology will likely be influenced by new entertainment forms, consumer preferences, and innovations, making the exact nature of future consoles and their technology speculative.