If anything given how bad Taboo Tuesday was, doing the same card would probably result in it being worse. People aren't going to pay for a show if they don't know what's going to to be on it.
And they've done weekday PPVs tons of time before this.
Cena is still hot right now, and taking the belt off of him at a PPV no one is going to watch and after he's been Angle's bitch for a month would really damage him. I think Cena beating Angle on a fluke only to have Angle go psycho to build to a rematch would be the way to go.