The CDTV and CD32 were utter failures in the larger scheme of console gaming when new, not to mention it being 20 years too late now. They carry about as much esteemed brand recognition now as a Commodore badged Android phone.
Neither would have any brand recognition to make them worth what they would cost, and there's no "must have" titles. and exclusive titles just aren't going to pop out of the woodwork in this world of the PS4 and XBox One.