Sorry to say but I don't think there's going to be another Jsme-Pune via Tata.Even if there's a frequency increase,the train will follow the same route i.e. via Pcoi.
I don't know when and where you heard that news.These kinds of rumours spread so much on various media platforms.Plz don't trust them.
IMO there should be a dedicated TATA-Pune express via Nagpur.