2.4.0 meta-issue

[caguero]

• [x] #712
• [x] #707 caguero
• [x] #704 caguero
• [ ] #683
• [ ] #680
• [x] Exploring alternative wave models. See https://docs.google.com/document/d/1an4vlmAXpntQeFBCChSqnMU4pFH3dMZR3dxj8L9X_ok/edit?usp=sharing
• [x] #679
• [x] #613