1. [Read Only] - Hippo Site Toolkit 2
2. HSTTWO-1583 Optimize performance and memory for HST with more than 500 to 1000 subsites (including multiple languages)
3. HSTTWO-1608

Inspect whether it is possible to load the Sites only for the hostgroup the current request matched in: This way we can avoid that for example an dev group gets loaded in prod env