The desire to create new ship designs WILL be served on this film, don't worry, folks. The new ships with significantly different details simply are different ships. One of the joys of a film like this is that you can expand without contradicting. It's common sense that there would be other ships that don't look like the 1701, and we KNOW that the 1701 didn't always look exactly like it did in TOS throughout it's service life (knowing that there were two significant reworkings to installed systems, though not spaceframe, between "The Cage" and TOS).
It's been debated to death about how the TMP ship could be considered a "refit" when it was stated on-screen that it's an "almost entirely new" ship (One has to wonder... what parts were retained? Maybe a terrarium from the botany lab???) Bottom line is that the TMP ship was NOT really the same ship at all. Most likely, calling it the "same" was a pure political maneuver... an attempt to bypass treaty clauses or funding restrictions.
So, the TMP ship was NOT the same ship as the TOS ship.
The question here is... will the ship we see here be the same ship as the TOS ship? And if not, why not?
We know that "Vejur" hates the original design. He's been telling us that for the past several years. We GET IT. And there are several other "nuTrek" fans who feel similarly.
It's true, I haven't gone out, hired a brigade of grad students, and performed a nationwide poll on who likes what ship best, so my estimation of what's what is based upon my own anecdotal evidence. I think I have a bit MORE "anecdotal evidence" than poor Vejur has, as I've been discussing this topic with friends, family, neighbors, coworkers, in a variety of situations throughout the entire USA for over 40 years. But, granted, it's still anecdotal. Just a bit more reliable than asking my kid sister and my two bestestest buddies about it and calling that conclusive.
I base my assessment on the feelings of folks on this BBS (Vejur is the only person in my poll from last year who really, REALLY wanted the original ship design to be totally dumped, as I recall... the overwhelming majority of Trek BBS posters wanted it to be, externally, "the same as the original but more polished.") I base it upon watercooler conversations after the last several Trek movies (people thought that the 1701-E was... well, "cool looking" but totally forgettable).
But EVERYONE recognizes the classic 1701. I've never found ANYONE who doesn't. Not one single individual, ever, in my personal experience has ever said "what's that?" when seeing this ship. They all, without exception, "get it." The same CANNOT be said for any other version (though some will, occasionally, get the 1701 and the 1701(r) confused). The 1701-B, 1701-C, or even the 1701-D are barely recognized by non-fans. NOBODY knows the Akira or Steamrunner or any of that stuff, outside of hardcore fandom.
But EVERYONE knows the original ship, looking as it originally does.
Sorry, kids, if you subscribe to the "It's not your father's Star Trek" mindset. That sort of "claim it for my own" rebelliousness creates nothing, it only destroys... and it never really lasts. Seriously... going back to the "Lost in Space" argument from above... show people the classic Jupiter 2 and they'll recognize it, show them the movie J-2 and they'll have no clue what they're looking at.
"Iconic" is the term. If you're going to remake something, and there are elements of that which are iconic... those are NOT the elements you should be tossing aside.
No matter if some would-be "fans" really really WANT to throw away the stuff that came along before they became "fans."