I'm a big fan of 70s disaster movies, which are a little bit distinct from other disaster movies.The type of movies I'm talking about here are:
The Poseidon Adventure (1972)
The Towering Inferno (1974)
Airport 1975 (a sequel to Airport)
What made these movies so cool was that they would always use big stars in multiple roles. The Towering Inferno, for example, starred Steve McQueen, Paul Newman, AND William Holden.
In 2006, they remade The Poseidon Adventure, as Poseidon, but it was a box office disaster. From that perspective, I guess maybe disaster movie remakes are a bad idea. On the other hand, it might just have been an execution problem on the part of the studio. The movie might have sucked, and/or the marketing might have sucked too.
Modern disaster films, most of which aren't really remakes, haven't generally been very good. 2012, Armageddon, and Volcano were all more-or-less disasters themselves.
I think on an artistic level, the idea of remaking movies over and over again is a bad idea in general.
I just realized that I'm rambling, heh.
To sum it up, disaster movie remakes are probably a bad idea. But if they wanted to make new movies in that tradition, with huge all star casts, THAT would be cool