Chances are there but the thing is that training will be given for all COD's as all trains will be converted to LHB sometime in future...
and regarding possibility of converting a NS CDO train to LHB, chances are pretty bleak ..reason being no.of rakes required for be it Narasapur-SC-Sabari combo/Ns-NSL ...
i guess NS-NSL requires 3 Rakes where as Sabari/Narasapur combo requires around 5-6 Rakes (Correct me if i am wrong here) ...
other...
more... NS-TPTY Link may not be getting anytime soon as its a link rake and not sure whether this rake if converted to LHB can run with Single LHB upto GDV and then link with MTM bound link to run as full Rake...if such exists then yes, only possibility..