If it were to be as a SNES one, 3D should probably not the be a good choice, there's been alot of good games that got abit "ruined" by making them 3D, like Blaster Master, another classic, went from 2D to 3D and it was pretty famous for being "Akward" without having the old feeling of it being a unique gametype.
If you'll be trying to make it more SNES feeling, a simple retouch can make a good impression Like for example. Let me whip something up in a second.
Edit: If you were, for example, to make a smoothening of the Original sprites(Although it's more like a ReMake then a scratch sprite.) to make it able to hold double the pixel frame, we could somehow get the old feeling of it being the original yet with a touch up. Like this one I made in a few minutes.
It gives you a more of a "same" feeling.
Of course only a touch up of the sprites can only go so far, with the level design still may be of a newer taste if you were to change it to make it more of a "new" game. But Copyright as well may come in the way if this project were to leave the ground.
There's alot to think of here, heh.
If you possible were able to use the touched up sprite in your Play Basic programming, Teremocheck?
Atlteast it's a start?
Also, I love the feeling of being overwhelmed in that last screenshot you have, Tere.