The reworked treasures apparently only added a super rare (saying apparently since do we actually know if those treasures were left as is from China and "updated" for non-Chinese servers or buffed much later).

Now if tobirama and tsunade Hokage is at 240 in China (since I don't know their rate) then their rate could be at the 800-1200 range based on Oasis logic. They would not even dare try to increase it beyond the 800-1200 mark if they have any decent logic.