Can't see it happening, SKY could not make and sell such a device in a price range that the majority of people would expect considering DVD players sell for under £50 now. Just look at the price of the SKY+ 160, that's just a bigger HD and USB ports!
SKY+ with integrated DVD player would not replace the DVD recorder since that can archieve programming to DVD for long term storage and flexible useage while SKY+ recordings are tied to the HD and encrypted.
Get yourself a decent AV rack, looks good and keeps the cabling tidy and allows all the units plenty of room to breath

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