R68As on the N and B?

[R68 Subway Car 254]

I have seen photos posted here from recent times that show R68As are running on the and (? How many R68As are there on the and , and will the have more of the Line R68As soon after the R40s are gone?

[error46146 1,007]

i saw a few R68 N trains today

[R32 3348 11]

The ( is getting the (Q)'s R68s as well as the remainder of the (N)'s. The , I don't know since it's been said that the line is being stripped of its R160s...