Concerning the ALOS-2 Basic Observation Senario, please refer to "PALSAR-2 Basic Observation Scenario Map/User Guideline" on the page of ALOS Research and Application Project of EORC, JAXA as follows.
http://www.eorc.jaxa.jp/ALOS-2/en/obs/pal2_obs_guide.htm
Concerning the mid-term plan, you can confirm via AUIG2 with "Obs.Plan" tab.
Concerning the weekly plan, you can confirm via AUIG2 with "Product Search" tab.
https://auig2.jaxa.jp/ips/home
The observation plan should not be guaranteed.
Every observation plan might be changed or rejected without any notice due to the emergency observations such as for disaster and other special reasons for the conditions of satellite.