Even if the key specifications of any new design portend “make it smaller,” you should do an analysis of that with regard to the market, application, function, customer, and any related factors. Let’s look at the good and the bad news.
First, what true benefits accrue from going small? For products that must occupy a limited space, small is obviously good. Less weight also tends to go along with small. For example, space craft would benefit. And some automotive designs are desirable because of the inherent limited space in a vehicle and the usual negative effect of too much extra weight.