the idea is simple and would increase the speed of Ascendance release by 2 fold!
As LadyGeek mentioned in another topic, getting through the complete list of 5*s might take 10 years.
Why not increase the rate?
The ideas could be to have not ONE character as possible source for a given 6*, but two or MORE OPTIONS.
Glenn 5★ “A Larger World” Strong OR
Glenn 5★ “Road To Survival” #3 Strong could both lead to the new 6*
In my opinion you could even take a complete different trait/role as source. But this would give more people the option to ascend more of their toons - without spending resources on the 6* Artwork/Skill Designing and so on.