I think digital components will continue to improve. I believe the biggest advancement will come in advanced DSP being implemented in loudspeakers, such as that NHT 2.1 system with room-correction. Analog components such as turntables will continue, but they will increasingly be interfacing with digital components such as Class-D amps, where there will be an analog to digital conversion. Many, including myself, are wary of such conversion, but I think that stage of conversion will get better and better....eventually becoming sonically transparent.
"We're always looking toward the future here. We recognize the growing online market the San Francisco Symphony is enjoying," John Keiser, the SFS's director of operations and electronic media, told Stereophile magazine. He added, however, that digital sales are nowhere near hard copy sales. For example, since 2002, Symphony No. 6 has sold 18,100 hybrid SACDs, compared to 1,640 total downloads of all SFS Mahler symphonies available (album downloads plus single tracks) since the orchestra's iTunes launch last year, according to Stereophile.