Read the first post of this thread. In short: The publisher doing the console port went bankrupt, the rights to the port are auctioned of in a few months. TFP wants to aquire the port and continue the work but realistically this will take months to get any results.
I'm pretty sure what would have happened if Telltale had not bought the rights to port it: Then there would be no console version of 7d2d, at least not now.
TFP has no experience with console, they would have thought about a console version only after release of the PC version. If they had tried to hire IG themselves they would have had to do all the tasks a publisher has to do and front the money for the porting. This is not something you suddenly start doing as a developer in the middle of your early alpha development. If it wasn't your plan from the beginning you would think about that again when you are finished with the game and have some free time.
You would have got 7d2d around end of 2020 at the earliest, if at all. TFP might simply have shied away from console porting because they would have thought it too difficult to port the release version to the very limiting hardware of the console. TFP has also postponed a few features for after release, This might also divert them from even thinking about a console port later.
Lots of console games never surface on PC, lots of PC games never surface on console. Chances are good you should even say thank you to Telltale because they were the driving force behind the console port even if they couldn't finish it. And now TFP seems to feel obligated to finish what was started which they surely would not feel if there never had been a console port.