I´m not sure about the focus of GP to create lower priced watches; in that area, i think there´s already a lot of competition.
Well, maybe not by true manufactures...
Aside, a more dressy model like the Vintage 1966 is so much nicer in a precious metal
Right now the Vintage 1966 is priced under the average price of a GP timepiece and i´m not sure they really need to add more models to the lower range.
So i´d guess it´s better to start saving than to wait for steel unit to happen