Still on the issue of Mass Effect 4. If they are suggesting people maintain their saves from ME1-ME3, does that not mean it would still be current generation.
Not necessarily. Between the current generation's cloud storage capabilities, and their ability to copy saves to USB media, adding in support for bringing saves to the next generation is going to be trivial for console makers.
(While I don't think there was any way to bring original Xbox saves forward, PS2 saves could have been via memory card. Were there any games that actually did that?)