The new upgraded generals are gained after the reform, but the old ones do not become new ones - you will have to wait.

(that is, there is no such thing as transforming one unit into another - there is a data line that consular republican guard stays consular republican guard untill familly member of consular republican guard dies - or gets retrained - but I am not sure)

, you will have to wait for new faction familly members only after the reform to have new type of general bodyguards