Phasma is the new Boba Fett. The new Darth Maul. A cool costume/ suit and nothing more. Just a cool looking henchman that dies quickly without any character development and quite honestly none is needed. They serve a purpose. To look cool and perhaps even do a few cool things. I'm honestly fine with that.
I hope they resurrect Snoke and give him spider legs so he can exact revenge on Kylo Ren about 15 years after the fact. That would be so awesome! And he should have a brother named Malevolent Persecutor, but pronounced in a fancy way.