Do move!
It will give you support; it will give him more contact with DGCs. He may not be up to the journey later.
My parents did just that, and dad died just 2 years after moving, but in the meanwhile, re-organised the local bowls club, trained the alter-boys, and did voluntary book-keeping for a number of small groups! Mum was therefore supported by all of his friends when it happened.
It will give you time to settle in to the local social scene as a couple - easier than as a singleton. It will give you a new area to explore, and it is not too far for old friends to visit.
Men do like their settled comfort zone, and you have moved to accommodate him, so now it is his turn.
You can do it in stages:
* Moving is a great way to declutter, so something to take his mind off what is happening.
* Start house hunting on-line, so you can see what is there. (You can sign up for feeds from Rightmove)
*Get a map and tick off good and bad
* You could join the facebook groups local to where you are thinking - our U3A group often has questions from people asking about the area because they are thinking of moving here for example.
But please do your research, if you are thinking about a flat. Senior flats come with so many costs and issues for heirs, and even general flats have service charges. Here, there are a lot of small bungalows suitable for older folks who do not need guest accommodation.
Good luck