What do you think is the future of high end audio?
First of all, let me say what I don't think is the future of high end audio and I will start with your list:
Streaming-I don't consider streaming high end audio. It's an all you can stand digital music buffet.
DSP-DSP is for people who love them some digital and can't quite get enough of digital so they convert their analog to digital also (assuming they have any). Also, they tend to have some really nasty sounding rooms.
All-in-One Speaker Systems-Again, these are for digital diehards.
Continuation of the DAC of the month club-This trend won't end, but I don't see it as the future of the high end.
FPGA chips being applied to more than just DAC's-FPGAs could have some interesting implementations, but I'm not willing to say FPGAs will be the future of the high end.
Wireless-Wireless is for people who don't know or don't care about the high end.
Headphones instead of speakers-Headphones are for people who live in apartments or who have angry wives that won't let them turn their stereo systems up past a whisper. Hopefully that isn't the future of the high end.
What I hope the future of the high end will bring to us is bleeding edge products that have had lots of their technology and sound quality brought down to a price that lots of people can afford. I don't see analog going anywhere until the last master tape has fallen apart. When that happens, we will be buying LPs that were cut from a digital copy of the master tape.
As far as I'm concerned, everything in our playback chains has improved over the years and the gear keeps on improving. What hasn't improved and has actually regressed over the years is the quality of the recordings and the quality of the artists making the recordings. Once we got away from 2 track and 3 track tape recordings made with tube electronics and tube microphones, the sound of our recordings has gone south. If you want to know how far we have regressed, go back and listen to pretty much any jazz recording from 1957 onwards (on vinyl or tape of course) and come talk to me after you have pulled out what remains of your hair.