It is very doubtful that a new movie version of Battlestar Galactica will have anything to do with the recent television series.
BSG's (and Knight Rider's) creator Glen Larson, was given the movie rights for both series while the network (NBC I believe) retained full television rights. So for either series, NBC can do a new television show and doesn't need to bring in Larson -- they only need to properly credit Larson. And when it comes to movies for either property, Glen is free to do as he pleases.
Speculation has it that the biggest reason NBC did that recent Knight Rider series (which failed) was to steal the wind out of the movie project's sails. It was really too bad as the series should have been so much better than it was.