If you’re happy with the hub you have now, I would just move it to the new house and make your new rules using the same app that you use now. You can always change later.
The following thread discusses the specific differences between the V2 classic app and the new V3 app.
On the other hand, if the new home means you’re going to need to invest a lot of money in additional new devices, then I would just start your candidate list from scratch, with the V3 hub as a potential candidate. And if you are going to start from the beginning, then the following thread has my suggestions for how to start the planning process:
