How the plot is received will obviously come down to execution, so at this point vague spoilers aren't particularly bothersome to me.
I will say that, if true, the above better guarantee at least one huge, sustained, and compelling fleet action, on screen and in space. I'm talking capital on capital violence, power yields and Torpedo Spheres and Super Star Destroyers, massed bombing runs and daring fighter raids, the works.
Why?
Endor was largely about the fighters and the death star, Coruscant was mostly the buzz droid power hour, and Scarif was alright but a bit limp because the first two Star Destroyers were very badly commanded (that being said, fuck year anonymous Hammerhead).
And that's all well and good, but it does not scratch The Itch. I don't mind if it happens in Episode 9, I don't mind if it happens right at the end of the film, I don't even mind if I have to watch it in 3D, but mama needs some heavy metal to explode with biggatons of force.
I have been denied for too long!
Give me my giant explosions, Kathleen Kennedy!