Or maybe just erase the "I am the senate/ Not yet"

So it'd be

-Youre sooner than I expected (he starts to get up)

- I know who you are... I know what you are. The senate will decide your fate (shot of windu for a sec)

-It's treason then. (P turns on his sabre, and we here Windu does right before he gets on guard to fight)

-------------------------

You know, a sincerement between Jedi and Sith for the first time in many years.

Palpatine tries to keep his mask to the last moment

With your new line windu tells him to stop pretending and challenges him.

Palpatine says cinically "it's treason" and attacks him. Simple.

You could choose who challenges who. It could be like ObiWan vs Grievous, that ObiWan (I know you cutted this) got on guard before his foe.