They should make an ending, I'll disagree with you there. Thankyou though for seeing our side. Its nice to see how the Escapist has come from its early articles where things basically said 'I haven't finished the game, but this is all just rediculous' to neutral articles as some of their own speak out about their displeasure with the endings. I've covered this in more detail in another post, but its nice to see some people in journalism on our side - especially after that whole Gamespot or W/E 'fired for bad review of game' stuff come to light.
Why I think they should make a new ending is that even if the satisfy no-one, don't provide a perfect ending for everyone - they will have improved the ending, and they will continue to make sales, and people may restart playing ME3 more. They will show fans 'Yes, we did listen, we are sorry. We know this won't suit all of you, but hopefully it fixes some problems'. If they did this, I'd turn from the Retake ME3 movement to defending Bioware. Sure, it may not be my perfect story - but a lot of people know it won't be, and are prepared for that. Granted a lot are also planning on not buying the DLC until peers do and review it for them, but unless the DLC is as horrible as the current endings, I'm pretty sure people will still buy it.
It will give people motivation to play ME3 again - something many, myself included, have lost for the entire ME series as the ending takes our choices, the reason we played, and throws them in the bin - allowing them to relive 90+ hours of enjoyment, and not be so dissatisfied by the end of that.
No-one is doubting that it won't be perfect. Perfect isn't what we're asking for. We're asking for an improvement. We get that improvement, we'll support Bioware. We don't, we'll let EA re purpose them into making generic shooters or something.