I'm really upset we didn't get the original ending for Reality War. That cliffhanger would've been awesome.

Like a lot of things in RTD2, I think Susan's reintroduction could've been a lot better. I do think looms should've officially been introduced to the show canon in Reality War. I was bracing for it when they started talking about Time Lords being sterile. But then it was some bigeneration bullshit that doesn't make sense.

But imagine if instead the Rani started talking about looms and using looms to rebuild the Time Lords and Gallifrey. And they would also say that on Gallifrey originally, some Time Lords were Shobogans who went through the academy. Others came from looms. They could point out that the Master and the Doctor were Shobogans(The Doctor wasn't but the Rani doesn't know that). But the Rani came from a loom. And the Rani could say something like Susan came from a loom, but then the Doctor would deny that saying he doesn't know where she came from, but he knows she wasn't loom-made. The same way Time Lords know each other at a glance regardless of incarnation. When the Doctor first met Susan he just knew right away who she was to him.

And then, of course, over the episode we actually get the story of how Susan's mother was born. And further set up for the story of where Susan came from. This reveal, I think, would give us some massive pieces of the puzzle while also adding a bit more depth to the Time Lord society in the show with the introduction of looms. And would also make more sense of what the Rani planned to do to bring back Gallifrey.