If your DIL knows that you don't like her, and I am sure that she must do, she will not feel very inclined to keep in touch. It's in your own interest to try to put aside whatever your feelings are, and to get on a better footing before they emigrate.
Three of my adult children live in Australia. My daughter, mother to my 21 month old GD keeps in regular contact, and it's a joy to see little S growing and developing. She's now old enough to recognize me, and always gives me a smile, and a kiss on the screen. Most of the time she then scoots off to do her own thing while Mum chats to me, but it's lovely to have the chance to see her.
My 2 sons are less good at contacting me, what with the time difference and their busy lives. Neither of them have children. We do catch up every month or so, though. That's men for you! I have a very good relationship with the in-laws, luckily.
Having family on the other side of the world is far from ideal, but life is good for them there. I just have to accept that they are living their lives, just as I lived mine, in the way that suits them best. Good luck, Emm14. Save up your pennies and get ready to fly over to visit as often as you can.