Makedon reform help!

[Ludens]

The reform requirements are the same in 1.1 as in 1.2 right?

Yes.

My guess is the advisor will announce the deed.

Also new barracks will become available for training the new-fangled troops.

No, the Macedonian reform is in fact tied to the old Marian reform of the vanilla game. You'll get an announcement about the March of Time, and the new troops will be available, but there will be no advisor message and you don't need to construct new barracks.