If anyone had a lick of english comprehension Stephen Ried never says that hi-res textures will ever be released. What he states is that graphic fidelity will be improved, which could be taken to mean anything and have nothing to do with textures even.
This is false advertising when they used setting that cannot be achieved to make all the promotional material. Using a supercomputer to push out the best screenies possible is perfectly acceptable, since technically i could also build said supercomputer.
They showed these graphics as playable graphics, not cutscenes or cinamatics.
Need proof, just google: pax east swtor