If a single one of those comes true Timmy's a bigger idiot than I thought. Every single thing on your list is a loss for no reason at all.
How is no ethernet better than ethernet? How is a soldered SSD better than a drive bay? How is no dedicate GPU better than GPU.....
Why do you want to turn a sweet little machine into a piece of garbage?
Because of late, Apple seems to have made some baffling design decisions simply for the sake of showing that they can squeeze everything into as compact and as efficient a package as possible. Or at least, that's the impression I get from their iphone and Rmbp keynotes where they keep waxing lyrical about all the engineering breakthroughs they made in slimming down their offerings.
It's like for your lecture notes, you choose to cram 6 slides onto 1 page and omit enough slides to make the final quantity a neat multiple of 12, just so you can boast to your friends "Look, I managed to save all this paper by squeezing my notes into these single piece of double-sided printout, all while squinting really hard to read all those minuscule text.
Same thing with the mac mini. I can see them asking themselves "What can we take away to still make the mini useable (barely), while making it smaller and thinner? I personally admit that there is something hypnotically attractive about a small, magic black box that turns a screen into a desktop when plugged in, even if it is just a glorified netbook sans screen.
That said, I believe the ethernet port will remain, if for the simple reason the Apple Tv has it. It practically takes up next to zero space, so there's nothing to gain by taking it out. I also believe they will keep the HDD, because quite a few people evidently use it as an Apple Tv on steroids, and in this aspect, quantity is better than quality. I still like to think that Apple will include a small SSD cache for fast booting purposes, though they will probably make the SSD option all-or-nothing for profit's sake.
Firewire hasn't really caught on, so I think it will get the boot. The 2011 mac mini had quite a fair bit of empty space (where the optical drive used to be), so I can see it going away. Not many people actually had use for the space, and adding your own drive was risky.
I doubt we will see quad-core processors, as Apple probably wants to sufficiently differentiate the imac from the mac mini. I hope for a dedicated graphic card, and at least let us upgrade the ram on our own.
In short, don't get your hopes up too high.
