The Monstructor/Dinoking connection is like a 2-way street with dead ends in both directions. The inner robots were shared between both sets on the original versions, but the shells were drastically different yet their most recognition attributes, and that's where the modern issue begins, with the current propensity to combine elements of the shell and robot modes. If shells are off the table, I think the best solution for Dinoking would be to merge the shells and altmodes, with traditional robot modes. To that end, our best chance to get Dinoking would have been redeco and remolds of the PotP Dinobots. But that would be completely unsatisfactory for Monstructor.
If the upcoming Core Dinobots are made to combine, maybe Dinoking is still a possibility, and if so, maybe Monstructor will follow?