I have seen them go well past 100k, but the trade in value drops dramatically regardless of what NADA, KELLY BLUE BOOK...say. The smart dealer does not want that on his lot after warranty is up, imagine the dealer shelling out that type of money before or right after he sells it.
If you go to the website fordparts.com you can input your vehicle info and either put the basic number 10655 in or pic electrical starting and charging category then pic battery and related components.It shows the list price as $9416.13.
According to kelly blue book the suggested retail value of the vehicle with 100K miles is $16820,the trade in value is $8975 to $11475, and the private party value is $11500 to $14200.
I would suggest trading it before you get to 100K unless of course you really like the car.