I only know of one person that accepted his contract- his name is Stephen Trafton and he is graduating from college this month. He is in the ensemble and I think he's understudying Marius.
Here is link to a fan review(not mine) of the rumored Marius and Cosette, Adam Jacobs and Ali Ewoldt.
Also, I am a little disappointed to hear that there will probably not be a tour after this production closes, but I am not surprised. However, I am still hopefull that there will be another tour eventually, though it might be awhile.
As for a tour following the revival, I'd assume there will be one. Maybe not immediately after, but definately in the near future. Les Mis is a cash cow, it'll be back.
And I still think that this will turn into an open-ended run before its all said and done. Or, at least, keep pushing the closing date back furthur and furthur.
The Valjean role package has been offered to Gemignani. Any one in this business knows that means a deal is being negoatiated. None of the roles are confirmed until a contract is signed and an official cast announcement comes from the company producers.
Hate to be so techinical but things can and do change up to the signing.