Hello,
I will present PowerServer 2020 sneak peek at Elevate2019.
Of course my word is not Appeon's word and roadmap changes may occur, but main focus of PowerServer 2020 is to sync the PB 2019 features to PowerServer Web (lower priority to sync to PowerServer Mobile).
JSONGenerator, JSONParser, CompressorObject, CoderObject, CrypterObject etc are first candidates.
Best,
.m