There's no way to know for certain that a given area is a guaranteed property hotspot. You can speculate on where this could happen, but anyone 'guaranteeing' that an area is about to boom is probably trying to sell you something.

Keep an eye on property data from companies like RP Data or APM, try to understand how social and political changes may impact a given area in the future, and do your homework to understand other factors that may affect property values in your target area(s).