Just to officially confirm – yes, ZZC Phaseque eventually will be ported to Rack 2. I created a ticket on GitHub to track the issue: Phaseque: Rack 2 Compatibility · Issue #84 · zezic/ZZC · GitHub
There are some tricky ways of doing parameter management and generating undo/redo history points in this module this is why it taking some extra time for this module to be ported to V2.