Well... after finding myself locked out of Trains dot com, and going through the annoyance of having to dream up a new password. I finally got to read the CLASSIC TRAINS article authored by long-standing Kalmbach staffer Kevin Keefe.
First, so far as the Midwest former NYC/MC Mercury service, even if such were restored, I still think the routing for an upcoming IND-CLE-DET journey next weekend would still be Lady Lex rolling on the 65, 70, 71, and 94. Oh, and of course the returning Wolverine would have a full service Dining Car serving Win Schuler's Prime Rib.
Uh, in my dreams.
Now so far as the suggestion to restore The Georgian, Nashville-Atlanta. I think Chessie would have her claws extended over that and ready for war. Returning from Florida on my road trip last month, I stayed in Antioch TN (have friends there). Chessie runs 'em long and with mid train distributed power. Even staying at a Hampton X-the Street from where the NC&StL passes in a deep cut, she woke me up several times as her trains rolled through (there's an Express on the other side of the street; even if I think Express has a better Breakfast than Hampton, staying there once cost me most of a night's sleep - and I couldn't even see the trains). Even if Chessie were to "give any Corridor trains her railroad", I cannot foresee them time competitive with driving the 24 and 75 - even if the traffic around Chatanooga and Atlanta only gets worse (room to expand the 24 near Chattanooga is simply nonexistent).
So again I say to those railfan nuts at the FRA playing around with their 50's era Guides (hey guys, how about service on the Abington Branch; how about rounding up some 4-6-2's for it to boot?), concentrate on routes between population centers (Nashville, Chattanooga, and Atlanta do qualify) where rail can be time competitive with highways - and air.