No Sir. It can't be possible as because WAP-5 is technically best suited for the Western plains only and in some plain areas of Northern Zone also so now IR allot it only in BRC. Agar WAP- 5 ko pure IR mein chalana hai toh it need many technical changes which is not feasible rather provide WAP-7 to other zones of IR which is technically competent for all type of surface of IR.
Please click on the following link and see the WAP-5 allotment(All to BRC since 2013)
click here