@daedalron
They haven't announced it but probably only half of Part 2.
We know it's 12 episodes and they took care with Part 1 (6 episodes for Part 1 Volume 1, 4 episodes for Part 1 Volume 2, 4 episodes for Part 1 Volume 3) so I don't imagine them squishing all of Part 2 into it (or maybe I'm being optimistic). Plus less of Part 2 is skippable compared to Part 1 anyway.
Also,
in the tailer they don't show anything beyond Part 2 Volume 2 and in the character picture at the end
we don't see Sylvester who would definitely appear there if they were adapting more than a couple chapters of Part 2 Volume 3.