I did look at it from a realistic perspective, and I have to say (@Nightcap) I appreciate you're post, and absolutely agree on all counts.
I've already thought of those cases, where if they would have to modernize it, change it, and somehow adjust and improve thing's to make a remake more appealing to modern consumer's, prior to your post. I've had past thoughts, and I did think they would have to consider some change. But It seems I just got carried away with the Idea, and I considered some things.
Duke Nukem, was a masterpiece by itself, and I agree, those one-liners are indeed glorious. But with a simple port, and a few bug-resolving day's, they successfully ported the DOS title to OpenGL and published it on steam with a price tag of $10.
Given several thousand copies we're sold in the first week, I'd say with the effort put in, they indeed got a decent profit. And they have many pleased fan's on their fanbase so props to them. And take in mind, the game was fairly successful without any changes, no adjustments to gameplay, visuals, mechanics, etc. The Megaton Edition is as perfect as the original, with the benefit of being able to run on a modern OS.
You are correct in another case as well, I wasn't considering a complete remake, something of the sort that has been done with Half-Life and Black Mesa:Source (Despite being a 3rd party) I was more interested in a simple port, something that was done with the most recent Duke Nukem 3D:Megaton Edition. This way the game can remain with what made Daggerfall amazing, and the slightest change in my opinion, can indeed ruin the experience. Just a simple port, retaining everything what made the game what it is, just overall OS support is what I'm looking for.
While this idea is a great one, and I mean... What Daggerfall fan wouldn't want a remake!? It is, in a realistic perspective, far fetched. it's most likely to never happen but it's not impossible.
Given under the circumstances that Zenimax doesn't force adjustments, and Bethesda does decide to spend the time to Re-Code and test the game for new bugs and go through with the publishing, I think it can happen. But the chances are very slim.
I'd like to bring another example to the table... FF7.
It was released on PC (Which obviously, the PC consumer's for such a game is a minority when compared to the amount of copies sold in it's console version) We're talking a game that sold millions on the PlayStation... But only a dozen thousand on pc. By the time Vista was released, FF7 no longer was able to run, meaning you had to have XP or below to run it, with a project that was almost already dead, Square Enix reached out to the few fan's on the PC version, and Re-released it with support for Windows 7 and Vista! This almost seems like a miracle, given to the lack of consumers for the PC port.
Now think of a game such as Elder Scrolls. Daggerfall has a much larger fan base, and many more fan's asking for a port to modern OS's. If it was possible and done with FF7, couldn't the same be done with Daggerfall? Just like Duke Nukem and FF7, No adjustments we're made. Only merely OS support. While FF7's efforts barely went in vain, with miniscule copies sold, and Duke Nukem did recieve some profit, these ports we're done to satisfy fan's.
While in the end, it all comes to Bethesda to decide, I believe it can happen. The chances are slim, but it's possible. That's my opinion.
Here's to hoping we can see the light of day to such a product!