I don´t think Until Down will do well. It´s doing worse than Gears of War Remaster, which I don´t think will do well either. IIRC God of War 3 Remaster was in the 20s by launch too and did poorly on npd.
As for the xbone hardware seems to be performing very poorly, maybe because they have so many skus right now. I thought that August would be a clear win for microsoft mostly because of the bundles but now I´m not so sure.
PS4 seems to be fine.