On the bright side, the NATO interoperability bit is helped by this choice.
Grats to the Canadian forces, let's hope they get the whole.
As to "will the whole lot get picked up?" ...
... I was hoping the USAF would get the whole lot of F-22's but that buy got cut substantially.
I was hoping the USAF would get the original 180 or so C-17's ... but that buy got cut.
The B-2 IIRC was originally going to be substantially more than the 20 ish that got purchased.
The F-15X numbers have shrunk at least once.
And so on ...