Unfortunately, no. IR wasted almost 20 years by not doing any improvements to the WAP4 design. And considering the amount of time it takes to develop a new system and retrofit all locos, by the time they actually come out with a foolproof system, we will already have a large number of P7 locos available.
So they most likely won't add HOG to P4s, unless someone convinces the railway minister to do some experiment with P4s as a publicity stunt.