I think they will not miss the deadline because the the project is sufficiently far enough advanced that they could probably take some numbers today and publish them to meet that deadline. They said that everything is completed except the economic analysis and that would be completed in early September.
I don't know whether they really are in discussions with Teck already but I'm pretty sure the feasibility is effectively done. I noticed Moose Mountain still has the project as in progresss on their website but the amount of work they performed has been updated. http://www.moosemmc.com/index.php/component/moose
It makes sense to me that they stop working at Schaft Creek while they release the feasibility and wait for the Teck decision. If Teck does anything short of a full buyout they can go for a very large financing and do a major drill plan next season. That is, unless someone else comes up with an offer that can't be refused. I doubt we'll get to next season though.