The biggest challenge in designing the world of Axanar is designing with TOS in mind. In the timeline, TOS comes 21 years after the events of Axanar. The first season of TOS takes place in 2266, while Axanar takes place in 2245, the year of the launch of the Enterprise. But TOS is an almost 50 year old vision of the future. And it is a vision of the future built within a very strict 1960's TV budget that frankly, looks VERY dated at times, while overall holding up rather well. But it is still a 50 year old show and our vision of the future has changed radically in that time.
So you can't simply go backwards from TOS 21 years or else you look like the Flash Gordon movie serial starring Buster Crabb! Enterprise did the right thing, they moved FORWARD from our current time frame. What would early warp flight look like knowing what we know now.
There are a whole group of fans who think you have to be slavish to the limitations of TOS and its 1960's vision of the future (which used 1950's tech in many cases). They think this is "canon" and so we have to look OLDER than TOS.
Well, we just disagree. No film maker is going to make a TOS era Star Trek today and use 50 year old cheap buttons, switches and toggles. Because NO ONE thinks that is the way our future will look and most viewers won't accept that as anything but cheesy. Sure, TOS purists love it, and it is nostalgic to see those 60's sets, but that is a tiny minority. And for you people, there are Star Trek fan films, who do a wonderful job of slavishly re-creating the look of that time, most notably Star Trek: New Voyages, which has the most accurate sets out there. (There are actually 3 TOS bridge sets in the USA, New York, Georgia and Oklahoma).
