What to expect from SysML v2?

Key SysML v2 Concepts and Innovations
Normative and informative libraries over than profiles with stereostypes
'usage-focused Modeling Approach'
-Enables modeling deeply nested decomposition directly while creating definitions (types) in the background, without bothering the user
Feature (cf. SysML v1 property) as a first-class citizen
- Can declare a feature (part, port, attribute...) as self-standing (e.g. in a library) and then use later
- Features can be deeply nested, and deeply nested features can be redefined (without all the complications of SysML v1 in which this is very cumbersome).