Catholicos of the East H.H. Mar Baselius Mar Thoma Mathews 11 is more than 90 years of age now. H.H. is taking rest
these days as adviced by his doctors. Until recently H.H. was very active, even traveling to North India. H.B Thomas Mar Thimotheos (Catholicos Designee) is currently authorized with administrative duties. In the Indian Orthodox church, both Catholicos and Catholicos-designee are elected in the Malankara Association.
As a practice, if a Catholicos retired by his own decision (actually H.H. doesn't have to retire), he will be still addressed "His Holiness."
If the Malankara Association (largest council of the Church) made a decision to accept current Jacobite head, then that may satisfy the Jacobite church towards unity and may result in unity. But I haven't heard about any recent Malankara Association. Since it is a very important meeting (with participants from all parishes worldwide and all Bishops), it will be advertised in all major news papers and invitation from H.H. will be read in all parishes. I haven't heard of any. Last Malankara Association was in 2004 to elect bishops.
Pray for H.H. as he is in a state of rest due to his old age.