The Renee Zelliger and Mathew McConaoughy (however the hell it is spelt) one is a sequel, Texas Chainsaw Massacare: The New Generation.
Hollywood remakes plenty of not-so-old successful foreign films. And now a days, they do it multiple times for the same movie, and they usualy all suck. The Ring sucked, but Fear Dot Com sucked even more. Both were copies of Ringu.
And if the studios would do a little bit better job dubbing movies from other countries, more Americans would watch the originals.
As for the current trend of remaking our own classics, from what I'm seeing many are not true remakes. They're taking the ideas of the original but creating something new from it. I don't mind that when they come up with something better than the original, but that is so very rare. (Thirteen Ghosts was better than 13 Ghosts. The new Italian Job was great, but really not the same thing. The original Gone in 60 Seconds really didn't have much storyline compared to the remake.)
Dawn of the Dead, it looks good on its own, but I doubt it'll surpass the original. However, as it looks to be a seperate entity, merely using the title and idea of the original, I'll give it a shot.
The new TCM, I think I'll either wait for the cheap theater or DVD. The original was great in its own way, but not one of my favorites. (Psycho is my preferred Ed Gein inspired horror franchise. THAT remake sucked, by the way.)