we will have to set up bases on most of the planets and then large stations spaced out between solar systems that act like gas stations and/or pit stops.
It will still take a LONG time to get places, but we WILL get there if we are determined.
The best habitats and the habitats supporting many Earth populations will be the asteroids with terraformed interior spaces. Planets and their expensive gravity wells will prove to be dangerous habitats risking extinction of its population in the same manner as the Earth.
If the EMDrive is real and not a hoax (small chance) then we might not even need fuel.
Um, not likely. The zero point field is everywhere, and it is energy dense. Tapping into the field is the unlimited energy supply for interstellar travel. BTW, Physicists are already working on isolating a craft and contents from the source of inertia and thus gravity. See Haisch and Rueda, et al