The dome stuff, it was an idea that come out to me, and since I had the screenshot at hand, I posted it. Actually, the only thing it can do is give the SD's model a blue-lighted detail, so as to scape a little from gray, only a visual improvement... if you consider that an improvement...

But lets take another example:

EPIII, the Invisible Hand is falling (this happens two times). The firt time when the ship is under the command of general grievous. He orders to power the emergency booster engines. We see something weird in the engines, like a reverse engine.

Then when Anakin is piloting the ship, entering Coruscant's Atmosphere, he does something that "closes" the engines in order to stop the fall.

This "emergency mechanisms" are shown in the PT. Suppose you use them during the crash of Executor in ROTJ. They'd clarely add tension and drama to the scene. Maybe it'd be a radical change, radical enough to reject it, but it'd make a point to introduce it if it adds something, don't you think so?