Sorry to hear of your loss.
I think, although not being a widow my advice may be meaningless, that you should do what feels best for you.
I cannot visiualize wanting to stay here without DH if I am the one left.
You will still have your memories and sadly also a feeling of loss, but it may be easier to cope with in new surroundings.
After all, you have been flung into a new chapter of your life and a new start somewhere else sounds to be what you feel like doing, so go for it.
The media are already after Andy!


and good wishes.