Your points about newsgroups isn't really true. There's a fair amount of overhead because of the protocol and encoding (though it helps a lot if yEnc is used), there's a lot less overhead in torrents. You only get "maximum download speed" if you pay for access to one of the (let's be realistic here) warez-oriented news servers, and retention is usually pretty bad.
DC++ is pretty much just a sucky-in-different-ways FTP, and did anybody use it for anything but warez?
FTP (and FTPS) do suck, being an old and broken protocol, but slow? Connections breaking? Not really, no. Perhaps if you're talking about public-access hacked warez dumps, but not a properly set up server. SFTP is actually SSH and pretty different to FTP/FTPS - please don't confuse the two.
BitTorrent works very well for what it is designed for, and I'd hate seeing somebody trying to frankenstein it into something it isn't suited for. Also, I don't really see the point for your two desired features - sounds like what you probably want is a multi-sourced ftp client combined with warez ftp dumps that are synchronized "however".
I'll ignore all the judgmental overtones in this one...
Your comments lack a whole lot of facts. Regarding usenet, you don't need to get a warez server to get max speed. You get whatever your connection can handle. If you can't that means it is being limited or blocked. That's not a problem with usenet, that's an isp issue or whoever the server is issue.
I still don't understand why you guys are so afraid of someone "frankensteining" or whatever the torrent protocol. I don't get it. It's just a tool, you can use any which way it works. Yes, I also hate to see someone use a chainsaw to commit ghastly crimes...but so what? Why is this such an issue? Are you saying we should stop trying to improve on torrent or chainsaws? I don't get it. Just seems like a bunch of judgmental stuff and nonsense fear.
And furthermore, all of these tools are primarily used for warez. so what? It's just a data transferring mechanism. People will always use whatever is best and convenient. If it's being used for warez, it's probably because its really effective at transferring data. So why do you keep mentioning that? Would it make you feel better if most of the warez stuff was occurring over bbs or ftp?
I can assure you, whatever the next evolution of file transferring protocols is, it will also be primarily used for warez. People will always be sharing files as long as computers are around, and they are going to naturally use the easiest thing for it. Nobody is going to say, "Well, I should use ftp because torrents are being used predominantly for warez" It makes no sense.