Gentrification, yes. That sounds great. Beachside value-investments like Frankston & Seaford come to mind here. The final approval from the Premier's office means that the Marina will be built for sure (the progressive mayor expects construction to start as early as this year) and that will attract a different sort of resident. As the area improves, a wealthier class of resident will move in and this may well be the gentrification you refer to.
A bit further up Chelsea is experiencing big changes.
Empty shops along the highway now - 6 months ago none were empty. Not Quite Right opened up to provide a 3rd supermarket, but has now gone bust. Meanwhile a new Safeway is being built as well as spaces for 8 specialty shops. A new Subway has opened but I've never seen a customer in it so it's bound to close. Shops to close include a $2 shop, stationer and a gift shop which has a landlords notice on the door.
All the closures could be transition or gentrification or just recession and retail space oversupply. I'm inclined to suspect the latter.