So basically the idea is not to announce any new trains in the budget and instead run them as specials and after 6-7 months regularise them. So probably the next in line looks like Kochuveli-Guwahati, Santragachi-Ernakulam. Hope they also become regularised.
Now we also have mangalore-trivandrum , kochuveli-chennai & kochuveli-hyderabad which have started running occasionally as specials