LGA1700 is going to get two more chip lines according to rumors.
A set of locked and unlocked SKUs that are the normal high end chips with E-cores disabled. So 6 or 8 P cores but with the full clock speed availability. Think i5-13400, but the same clocks as the 13600k and so on. These may be OEM only.
And a new line of chips called Bartlett Lake which will be P core only by design, 8, 10, and 12 P core designs. Core 5, Core 7, and Core 9. Not sure if these will be unlocked SKUs or not. That is rumored for 2025.
My current theory is that Intel has demand for non E core parts as well as the need to have something in production to replace potentially already damaged/degraded 13th and 14th gen parts.
LGA1816 should launch with 800 series boards and support Intel Arrow Lake S. Which is the follow up to Intel Meteor Lake which is available now as mobile parts. This will be Intel's move to a DDR5 only platform.
AMD AM5 socket today isn't a bad idea. Ryzen 7000 and 9000 series guaranteed, and very likely one to two more generations of CPUs after that.
AMD just launched a few AM4 chips if that is any indication how long they support such things. 5600GT is one of them.
GPU wise, best price/performance is AMD last gen while supplies last. RX 6750XT, 6800, 6800XT can be found at amazing prices. 7800XT and the 7900 GRE are competitive as well. RX6650 XT and RX7600 honorable mentions depending on regional availability and budget.
Only Nvidia card I see with a lot of value in the 'mid-range' is the RTX 4070 Super as a decent 1440p card.
For the curious the Intel A770 16GB is a decent price/performance, but still has issues with some games. No real rumors about Intel's second generation discrete cards, possibly also delayed until 2025 like Nvidia, but the original timeline was November.