No.

They're more expensive
They store less data
They are bulky.

Next gen will be SD cards, like the DS. Hmm...SD...DS...conspiracy?

Eventually storage will once again move to solid state medium. It's just more design effecient than motor based storage. I will however add that I doubt that will be anytime in the near future.

My only comment is that the mass audiance thinks they want more power, but it is often effeincy for effect that tends to be adopted. Effiency means more accesible in price for the average consumer.

As mentioned before. SD Flash storage is developing at a faster rate than HDD and definetly faster than Disc technology.

No, carts won't make a come back. They are just too expensive compared to discs, and no longer provide the sort of security they once did thanks to the abundance of cheap flash ram. Also, solid-state memory is set to hit a wall soon, given the fact that the 22nm standard is fast approaching, yet 16nm is a long, long way off. For at least half a decade there will be a point when they simply can't get more data without physically expanding the device, and a lack of advancing technology will slow the rate of cost reduction (since a physical object can only be reduced so far in cost).

Carts got the technology to tighten up the graphics.

Its like adding SPUs to your system

I wish.

I am willing to accept anything that doesn't have moving parts and offers a significant increase in load times.

 Can we ban him for snobism?

I certainly hope one of the 3 move to carts for the next generation, but I suspect that it may not happen until the one afterwards.
With higher resolution comes bigger textures, bigger levels and generally just more, this also needs to be accessed at faster rates. When you can fit 16GB on a chip the size of your fingernail, I really don't think size is an issue its just a matter of time for the prices to come down.

I genuinely think that 8-16GB memory sticks will be very cheap by 2012, and I would be willing to pay an extra couple of $ on a game to make it run faster and load quicker by having it cartridge based.

2GB usb keys are at the point now that you can buy them retail for about US$6, clearly there's a margin on this, shipping costs, taxes etc, so the manufacturing cost of 2GB now would easily be able to be incorporated into a game cost. Its just a matter of if the capacity for this price is enough for the higher capacity requirements of HD games. 16GB should be enough for most 1080p titles, with 32GB for longer big budget titles, but the beauty of it is that higher capacities will be made available as the generation goes on and 64GB or 128GB carts will be easily accessible to developers a couple of years into the consoles generation.

Well aside from everything else. I think Hard Drives have solved one of the major problems faced when disc based systems first came out. Save Games. Carts were still considered worthy medium for this main factor among other things, memory cards were'nt economically viable in the begining but they ironed that out and now we have hard drives in the systems, soooo yeah.

God I hope you're not serious. Unless you want your games to go up in price a good $30-40 it's not going to happen.