Sonalksis have announced their TBK3 Über Compressor for PC and Mac which is designed to take analog compression to the extreme.
Features:

Extreme analog-modelled compression algorithm
Optional ‘true analog noise’ colouration
Four selectable fully adaptive attack/release modes
Modifiable side-chain filter character
64bit floating point precision internal processing throughout
Efficient processing, with specific optimisations for native processors
Zero latency throughput - absolutely no internal [...]

Forever For Now have released Diatonic Shifter 2, a real-time diatonic pitch shifting and harmonizing Audio Unit effect. The plug-in lets you create vocal harmonies, diatonic guitar dubs and microtuned leads.
Features:

real-time, low latency processing for live performances
high precision post-processing for studio quality results
truly diatonic in-scale pitch shifting, harmonizing and microtuning
robust real-time pitch tracker with integrated [...]

 

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