The original Private Benjamin was an iconic role for Hawn, and a pretty groundbreaking movie for its day, since it celebrated a woman discovering her own toughness and independence. (She values it over a man. Shocking!) It was nominated for three Oscars, including one for Hawn and one for screenplay. While the message is still very relevant today -- and probably wouldn't even manage to get past a rewrite where Judy does pick the man over a career -- I don't think a remake with a "new angle" is needed. New Line isn't saying what that new angle is, just that it won't be political, it will be respectful to the military, and will "focus on the empowerment elements and build on the fish-out-of-water comedy."
I really, really like Faris. I do think she's hilarious and, yes, a worthy successor to Hawn and other 1980s comediennes, so can't someone write an iconic A-List making movie specifically for her? (I don't think The House Bunny was it, exactly.) She deserves to be known for her own talents, not just for doing a good spin on a Hawn routine. If Todd Phillips and Judd Apatow can write original comedy for men, why can't they (or anyone) write one for a woman?