I asked Vallejo via email if they intended to release new Ral 7028 Dunkelgelb colors. I received a kind response that they are working on four new Dunkelgelb colors based on four true samples sent by a friend (that must be our member snapdragon, thank you sir!).
They didn’t mention when.
They also did confirm that their Ral 7028 Dunkelgelb is the “Nach Muster” version. Snapdragon is spot on with that as well.
I can’t wait for their new colors. I now enjoy their paints here as long as I thin them with Vallejo Airbrush Flow Improver and not their thinner (I live in a very dry high desert climate and, as a result, more flow improver is needed to prevent dry tip).