I have my doubts, but Steve did imply when they cancelled the cube that they might try to bring it back someday. With all the clamor for a headless iMac, maybe something along those lines is in the cards for a Next Big Thing.
I did find the original TAM exceedingly amusing; the contrast between it and the original iMac pretty much showed why Steve was a heckuva lot better person to run Apple than everybody's favorite "No, really, I saved Apple" punching bag:
May 1997, Apple produces a machine in celebration of their 20th anniversary. It harkens back to the original Macintosh (all in one), but with a modern flair and elegant design. It costs $10,000, so unlike the original Mac (the computer for the rest of us) no one can possibly afford one, although they look cool.
Almost exactly one year later, with Steve at the helm, Apple announces the iMac. It harkens back to the original Macintosh, but with a modern flar and pleasing design (that incidentally radically changed consumer design in everything from vaccums to clocks). It costs $1300, so like the original Mac, anyone can afford one.
Note the difference--one seems right but makes a mockery of the concept of the original, while the other is EXACTLY what the TAM was intended to be. And, of course, we have the new iMac now which is a step and a half cooler than the TAM, but is actually affordable.
By the way, does anybody remember the clearance sales on the TAM after the first G3s came out? My school was selling them for a bit over $2K, if memory serves, which was pretty tempting just for the cool factor.