If you were an advanced civilization and you pointed your scopes toward us the earth would be in the dinosaur era or even before that. Maybe you could detect some sort of signal from another planet or advanced race, but the sender of the signal could be gone with no trace left to find if you made the journey somehow. The position of the senders solar system would surely have moved many light years from where such a signal would originate. That would sure be a bummer to the generation that arrives at nothing.
Living on the enterprise would be super cool tho!
Wormholes would be cool if it wasnt for that nasty "you wont age while everyone around you would have died eons ago" thing, once you get thru the hole...