I don`t think they will do this yet.....as RM do not make the flak 38.
Flak 30`s were not used in the flak 38T
Since they have a NICE pack 40 you have more of a chance in seeing a marder III next year.
If they do in the future make a flak 38 then they may include armoured parts for a Sdkfz 10/5.