I've said this many times, and others have said it, re-makes were bound to eventually happen. As far as the rumors of the Snowspeeder, seriously it's been over 10 years. This isn't the stock market, it's a toy. If they can remake smaller sets over and over again, why can't they re-make UCS sets???
As far as the MF, bring it on. Sure I bricklinked mine for a crap ton of money, but I would still go out and spend another $500 for a new UCS MF. Collectors are going to want it regardless. For those crying about re-makes so much, I have no sympathy for you. If you've been holding onto sets for this long because you keep wanting to hope for more money, then it's bound to bite you in the ass. It's the nature of the game.
With as hyped as the movie has been, and as great as it is, re-making a UCS MF is probably without a doubt going to be a home run for Lego. You do have to think, that as much press time as 10179 gets, you have to imagine there are a lot of people out there who don't necessarily have $4000+ to spend on 10179, but could possibly afford a $500 TFA MF with the new antenna and be perfectly happy with that.
Also, Lego wasn't near the popularity force that it was 10+ years ago. Lego is beyond mainstream now. It's not just a kids toy. And as Ed said, there will be people that are still willing to shell out insane cash at the original 10179 no matter what.