I'd remove the lines "are you threatening me master Jedi? Not yet." It just doesn't work in this edit, nor it doesn't in Bob's or in George Lucas, it just feels to rushed. I think when Palpatine told Anakin he was the Sith, he already knew that eventually the Jedi would be come and overthrow him, so it's pointless that Palpatine was playing his good guy card till the very end.

Besides it's too rushed how he switches from smiling (cinically ofc) to anger in "you're here sooner than I expected - Are you threatening me?". And Mace's answer is just incoherent.

Are you threatening me? Not yet.... that'd be "I'll threat you", while it should be "I'll kill you".

But it's an excellent line what you've found, and by it's own meaning it could be used to imply that Anakin never told him. Or that he told him late.

I'd put it like

Windu enters, switches on his saber.

Palpatine turns in his chair, still smiling and says :

Palpatine: "Master Windu (...) you're here sooner than I expected"

Windu: "I know who you are... I know what you are"

Palpatine: (laughter) I AM THE SENATE

Windu: Not yet.

Fight.

Cheers