Thanks!
Hmm, ADL-S should be on 10++ (???). DDR5 does make real sense. So long as LGA-1700 works for 10nm and 7nm, could be a good socket.
The whole 10+ thing is confusing. The way I see it is:
10 - Cannon Lake, never made it to commercial product
10+ - Ice Lake, released only to mobile is somewhat low volume (At least relatively to Intel)
10++ - Tiger Lake, should be released in higher volume than ICL to mobile, small (But not inexistent) chance it makes it to desktop with low volume parts
10+++ - Alder Lake, should have a full product line up released to clients, without any volume limitations.
Now others see it as:
10 - ICL
10+ - TGL
10++ - ADL
So it gets pretty confusing, and it doesn't help Intel does both.
And I agree, LGA 1700 has the potential to be a great socket, historically Intel brought support to new generations of PCIE at roughly the same time for consumer and servers, and they don't waste time for new DDR standards either, we know that Sapphire Rapids will have support for both DDR5 and PCIE 5 at late 2021, which is when ADL-S is supposed apparently to be released. This certainly aligns to the possibility of having both PCIE 5 and DDR5 on ADL-S and LGA 1700, which would be very nice indeed.
Now, PCIE 5 is apparently VERY hard to implement, so it makes sense why Intel might want to wait with it a bit, but if Intel's trends are anything to go by, there should be PCIE 5 support on ADL-S.
About DDR5, again, Intel usually implement new DDR support as early as they can (They started to support DDR3 with Penryn back in 2007, DDR4 support started with Haswell E in 2014, both very shortly after the standard got finalized). So I will be very surprised if ADL-S doesn't support DDR5. (It might even support both DDR5 and DDR4 like Penryn supported both DDR3 and DDR2).