Looking good!

A few ideas. I agree that the saber coming out of the sleeve should be cut. Gives that much more impact to the saber igniting in the darkness.

Have Palps get up slower. Cut from him starting to get up to showing the Jedi again with their sabers drawn but have the lights flicker accompanied by the force rumble sound effect. Maybe insert a puzzled closeup shot of Mace's face during the flicker before cutting back to Palps getting up all the way as the lights dim completely.

I think it would be perfect then. I think it's important to get a reaction shot of sorts from the Jedi to the lights flickering/dimming.

How I would do it:

Are you threatening me, master jedi?

Not yet.

Palps gets up and the lights flicker as he does so

Cut to the shot of the Jedi with their sabers drawn. Lights flicker more along with inceasingly loud force Rumble.

Closeup of Mace's face in the flickering light.

Shot of Palps after the omitted sleeve closeup. It's treason then. (lights flicker and dim to nothing) Palpatine's saber ignotes from the darkness.