Graham, we haven't seen what a post Titanic Cameron can do. That was his last fictional film.
I'm fine with a reboot of the original concept more in line with the '79 series. It's not going to be remotely the same and could be an extremely fun way to shove pop and popcorn into my piehole. I just hope they put better thought into their art direction. I hated the Viper they had in the pipeline for Singer's previous incarnation of this. They should get Syd Mead to do some work for them this time.