Technically we could use quantum physics to bend space and time without the need of wormhole. Quantum entanglement can provide such a possibility. Also what does superluminal expansion have anything to do with this?
Means that objects farther away are traveling to speeds more greater than the speed of light, which in reality is the space between that is expanding. Even if we travel to the speed of light (which is impossible since we have mass) it will take the DOUBLE of time to reach to the destination thanks to superluminal expansion. But of course, this applies better if you want to go to another galaxy.
And also, as far as i understand, the bigger the object is, the easier it is for outside forces to disrupt its quantum state. If you want to use entanglement "as-seen-on-QM", you should be nanoscopic or even more tiny.