I think Mr. Schumacher is having a bit of a laugh with the press. He has no need to come back. When you have everything he has acheived why do it? I have more time for stars like Prost who have a go at ice racing for the fun of it. If the desire to go racing still burns inside then have a new challenge and re write history again the way John Surtees did.
Ross Brawn is a canny chap. He went on holiday, said nothing and let press generate a media strom all of their own. I don't doubt they were peeved at Jensons choice of teams, but they should have pulled their finger out and signed the bloke up 2 months ago.
Can all Schumacher fans remember that he was gifted a mostly dominant car for most of his career. He did get beaten many times and lost 6 championships to Alonso, Hakkinen, Hill and Villeneuve, as well as made appalling mistakes and crashes along the way. History also proved he would cheat and be unsportsmanly.
Life is a blend of skill and luck and he had both in spades, but stay retired and lets be entertained by someone new.