If The TV Movie had worked

I imagine we'd have seen a series full of reboots of classic series serials such as Marco Polo and Genesis of the Daleks.

I didn't say remakes, I said reboots. Essentially the same story, but told in a different narrative. See Jurassic World.

The idea of remakes hadn't been entirely abandoned, Segal was still ruminating on whether or not they could adapt some of the stories lost from the Big Finish archives. They'd have likely transformed beyond all recognition by the end of the scripting process, but it would have been interesting to see a story spawned from something like The Daleks' Master Plan or The Moonbase. I wonder if they'd gotten wind of the Lost Stories, if they'd attempted adapting something like The Nightmare Fair?

Casting that aside though... If the telefilm had worked in America as intended, we'd have had something close to six telefilms a year and I think we might have had two versions of the pilot. One where Chang Lee and Grace are dropped back off in San Francisco and another where she accepted the Doctor's invitation to travel. Actually, a really interesting twist would have been to have him go down with her to celebrate the New Year's and getting caught up in something else next adventure coming directly from America.

Paul McGann expressed a desire to completely reinterpret his character from what we'd seen, so I'm guessing that we would have gotten a Doctor much more in line with what we saw from Big Finish than this one story. Being in its third year, The X-Files had more or less started to hit its peak with its mythological arc of government conspiracy and I think that we would have eventually seen something very similar bleed over into Doctor Who. Perhaps they would have explored questions left over from the pilot or developed an arc surrounding a power struggle between the Time Lords and the Daleks, but from the position of a shadowy proxy war instead of centre stage (seeing as the Cold War was now something people could discuss with ease). With Pip and Jane Baker's expression of interest, it's likely that we may have also seen submissions from familiar writers like Marc Platt, Kate Orman or Jonathan Blum.

As the show was celebrated for its quintessential Britishness during Thirty Years in the TARDIS and a lot of the preexisting fanbase would have been part of that locale, I think the Jacobs/Segal era may have tried to balance out the overt Americanisms with more European locales and possible methods of storytelling. There was a lot to be gained by upping the exoticism of history and alien worlds. It's improbable that they'd have gotten director Geoffrey Sax to come back for every story, so the style of the show would have likely mellowed somewhat from the in-your-face style we'd seen here. The Daleks would certainly have made a return, although in what form is extremely difficult to say. Going by the aesthete of the pilot, I think we'd probably be getting something closer to the Amicus Daleks, although there's every possibility that the spider Daleks would have been repurposed for this new direction (as they were in Fire and Brimstone).

All in all, Doctor Who would have looked very different to what we know today.

It's always a risk with long histories unfortunately, particularly considering that Paul McGann only had a single on-screen appearance to his name for a very long time.

Personally, I've never been a particular fan of doing a hard reboot on a long-running series with a varying cast. Soft reboots like what the show did with Terror of the Autons, Attack of the Cybermen and Remembrance of the Daleks were often pretty successful at getting everything more or less back on track and I think it's always a bit churlish to completely wipe out your predecessors' work.

I'm not a fan of the Moffat era's interpretation, but that doesn't mean I'd write a story specifically to throw out all of their stories. Ultimately, because well-meant or not it leads to situations where you actually cheapen stories that have come before you by turning legitimate drama into something much less. I have to admit that the idea to use the cracks in time as a way of restarting NuWho and making it a plot point at the same time was a nice touch, even if it did lead to constant resets and backtracking later on.