You probably have heard of Moore's Law. Moore's Law is
different from Sturgeon's Law, which asserts "90% of
everything is crud," and Cole's Law, which is
thinly-sliced pieces of cabbage.
Moore's Law (since 1965) says computing power will double,
every eighteen months or so. I've seen Moore's Law at work
in computer chips, in processors and memory. It's generally
accepted for digital devices to just keep doubling in power.
It's generally been accepted that "digital devices" includes
image sensors. Well, it doesn't. Image sensors are
analog. Moore's Law doesn't apply to them.
In fact, without some new technological breakthrough,
image sensors are as good as they're gonna get.