Perhaps, we could revert to the old gradation but add intermediate units, since that's what you want.
Regarding the rating of old players, why ignore it? Just for the sake of having nice statistics on templates, castles, etc. (which can still exist with the old data, but won't be for all games, as I understand)? It sounds absurd and is disrespectful to them.
Discord - Xocenk#2473