I think the 'flood' is 30series is dual purpose, 1) the market crash trigger the flood 2) a sell off to prepare for 40 series cards.
Nvidia keeping track of the used card market looks like its a boon for them, and the delay gives miners time to sell off everything so they can purchase new 40 series direct from Nvidia, like they did with the 30xx cards.
That's a logic assumption but it works only if a great percentage of the miners buy again in December, what are they gonna mine in December and with what profit, would it be financially enticing for the miners to invest again? Just asking!
If there will not be a movement from miners, someone would say it's in Nvidia's favor to launch sooner than later in order to prevent some of these sales, but in reality it's not, the only thing that Nvidia would accomplish is to force miners into selling at lower prices making even more difficult for current-gen leftover stock to be sold. (
If there is excessive current-gen leftover stock at all)
So the best solution seems to be to wait really.
But I don't buy MLID "report", his stance towards Nvidia in general isn't too friendly (to say it politely) and it had major prediction failures in the past.
Just do yourselves a favor and don't watch channels like that, there are good tech channels out there like GamersNexus that deserve more your attention imo.
After all if Nvidia launch only 4090/4080/4070 models at $1999/$999/$499 there is plenty of room for current gen cards to be sold.
Supposedly according to leaks the announcement is September with October 4090 on self availability, November for 4080 on self availability and December for 4070 on self availability.
So until December every current gen price will be compressed based on 4080 $999 value leaving a lot of room for current gen to be sold (if we suppose that 4080 is around 30% faster than 3090Ti in 4K this means that 3080 10GB would have nearly the same QHD performance/$ at $649, also 3090 & 3090Ti have 24GB that some people need more than the extra +30% gaming performance and the cheaper than 3080 models can be compressed much less (for example 3070Ti has +20% higher SRP vs 3070 while being only 5.5% faster at QHD so if 3080 10GB goes to $649 then let's just say $549 for 3070Ti and 3070 remains at $499 (and all the other below it...)
It's an extremely pessimistic scenario that i hope it doesn't happen, I just used it to highlight the possibilities, does Nvidia really need to postpone the launch in this case?)