They will be arriving the end of September......
Both are Black with 64 MB of Flash Rom Expansion.

The PSRS950 will now have "Audio Style Technology" which allows for real, live drum and percussion tracks within the style with real time stretch tecnology to allow for tempo changes without messing up the styles.

The PSRS950 will now have "Vocal Harmony 2" which features 3 part vocal harmony.

Both models will feature "real Distortion DSP" to apply the most realistic distortion and overdrive effects for Electric Pianos and Guitars.

Both will have 128 Note Polyphony

Both will have "Audio Link Multi Pads" which will allow triggering of loops direct from USB drives of WAV audio.

Both have newly redisigned Speaker Boxes featuring Digital Amp and Digital EQ for and an Extended Low frequency enhancement as well.

Audio processing- Center Cancel and Looping which allows you to set up repeat points of audio files and the center cancel feature eliminates vocals.

The PSR750 states that it will now include Super Articulation voices and I assume the 950 will have more but as of now there are no full spec sheets available yet.

The 950 will retail at $2499 and MAP at $1899
The 750 will retail at $1499 and MAP at $1199

Stay tuned for more information.