Circular Arc interpolation and others

my issue is: when i want to rotate some stroks by 90° around individual pivot point in edit mode , then i interpolate them , the interpolation happen as linear interpolation (picture: black dots is the path) and the red strok get smaller (2) then to normal lenght (3)

.... so i understand that every point in stroks get only interpolated linearly and not circular or arc movement . my idea and request is to have circular "arc" interpolation to be able do individual rotation for strokes in edit mode and interpolate it that wil be useful for cars wheels movements etc and i hope other interpolation exist like elliptical interpolation or combined interpolation like linear and circular arc interpolation .....