I wouldnt be against it but i really dont see how 5e translates to RTwP without massive changes to things that are already in the TB mode or making the game feel incredibly janky if its faithfully put in. It would suck if Both modes had different mechanics than just how the game handles turns but i really dont think there is a good way fit 30ft of movement, multiple attacks, bonus actions, action surge, another attack and another bonus action along with a reaction all in one 6 second turn. Its just not good imo to not have a quick way to translate and make it work and be somewhat balanced and not have to spend a huge amount of development time on it and remaking AI for it.
There is also the worry of when you put official support in you are adding a level of demand of polish and balance. sometimes you can get away by just saying hey its what we added basically offical support for a mod but i really dont see that being the case here with how strong people feel about it and the fight over how the game should be.
