As far as I know, the Studebaker museum is being moved because the city either owns or is purchasing the property, and they have other plans for the site, along with the idea that the Studebaker museum is in need of more space.  The city also owns around 1/2 of the collection in the museum.  The old Studebaker factory buildings are mostly 4 story buildings, which are of no interest to modern manufacturing businesses.  They will probably be torn down, but that will be expensive.  As far as the Center for History site, there are 3 parcels, with the ones on both sides being owned by the Center for History, and the middle parcel being a dead end city street, which could be closed.  At this point, we are not far enough along to be able to establish any deadlines, only that we have an interest, and it would appear that the people at the Center for History are very willing to try and work with us.  The details of using that property would have to be worked out, but it is pretty clear that we do share a common interest, and that is what would make this easier to do. 
Will update as I know more, Terry.