It has been a very long time since there was any news on reprint markings especially since the new printings now do not have reprint markings.
So, when an avid philatelist of reprints, Mr KK Khor, found the RM 1.30 National Iconic Marine Life Definitive without a reprint marking in Seremban North Post Office (Pejabat Pos Seremban Utara) on 23 March 2021, it was quite an excitement.
So here it is:
I suppose this is the direction of future reprints.
Good luck in your reprints collection!
For a compilation of reprints since 2018: https://myfdc.me/definitive-reprints-and-estimated-release-dates/
If you have any new information, do send me a photo and the information at firstname.lastname@example.org and I will acknowledge and record it down for the collective benefit of all readers.