Everyone knows that digital distribution is the damn future, my friend!

Yeah I'm done, you wanna be like this, be like this.

This (except that SSDs will be way faster in 6 years; using SATA-Express or m.2 ~2000MB/s may be the standard by then)

But there's one scenario where SD-cards may be used in the future: A console manufacturer decides to abolish optical drives to focus on digital sales, but still wants to give an option for people without fast enough internet connections. But an optional external optical drive may still be better in this case.

too expensive, 100GB SSD cards will be the minimum storage capacity of next gen games, in 6 years, they will not have come down to the desired price point to use them for games.

A disc: no more than a few cents/bucks
flash card: will still be above 20 bucks

I would love to see it one day but games get bigger each gen and storage cant keep up. Just look at N64.

If I were designing a next-gen system, I would strongly examine the option of flash cards for retail game distribution. No optical drive. Digital download or flash card. You could save a lot in size and production costs of the console while still offering a retail option.

That is, assuming flash memory continues to go down in price.

True, SATA-E is the definate future. Especially considerring it allowd the exact same hardware design set up as used today with just a swap in interface connectors (SATA 2 to SATA 3.5/4). And those 2GB/s rates will be a God send for gaming, cause we are looking at load times roughly 10 times better tahn what we have now (at least). An optional external DD is also where they would go to give those that would rather buy physical an option though. I don't know why this is so hard for some people to understand. So you're right there too. 

128GB usb drives cost 40$ atm. not cheap chinese, brand products...

and nintendo will just need 64gb because they will not go to 4k next gen.

most games could work with 16 or 32GB, that means lesser costs.

i dont think that nintendo will do it, but its possible.

the best think is tat u can patch those games. and maybee u just buy your own card and download the game at a store or at home.

tat coul be cheaper than a 256gb ssd inside the console(those will not go down so fst as long as the actuall design stays)

1. Then every console might as well be made to come with a SSD. Same difference. You also seem to forget that the cost of an SD card, even if its as lower as $10, is still $9 more than the cost of a disc. That is $9 more to the cost of the overhead cost of every games packaging and distrubution. Which can mean up to $15 less money in their pockets. We are talking about nintendo here.
2. No. You can get from amazon right now a 256GB SSD for as little as $110. Two years ago it was practically at least twice that. And these are consumer prices not OEM prices. If sony were putting SSDs in every console right now it would cost them around $80 per 256GB SSD. It cost them around $30 right now for the 500GB HDDs in the PS4. Now you really think that in 6yrs, it wouldn't cost them as little as $20 for a 1TB SSD? In 6yrs, for $100 you could probably get SSDs with oup to 4TB of storage space. Its all about economies of scale, the more people there are to sell something, the more of that thing is made, the maore its made, the cheaper it becomes.

Digital sucks *ss, so I'd like that (OP scenario) to happen.

But sadly it won't. If not just because of the costs. Still ironic that 'cartridges' could technically be better now in every way compared to discs, while their technical inferiority (coupled with those costs of course) was the reason we moved to discs in the first place.