First, take a little more time in getting to know each other well. Start by introducing a few pals and family members and see how the relationship goes.
Explore opportunities to settle down with the person at his/ her place or your city. Make the other familiar about the culture at your place.
Speak openly about the need to adjust to the new place and people.
Share your fears and wishes with the person. Be sure that both appreciate the sacrifices to be made. These should help you decide better.