Corinnguard
Hero
Very true. Or we find a master brewer like Laser Llama or Kibblestasty to satisfy our need for a new class for 5e. I also wouldn't mind seeing some conversions of PF1 classes to 5e.i feel like it would be just as easy to dig up one of the many old threads that discuss that very topic and have over half the work already done for us.
but personally i think the major missing positions are
warlord
swordmage
psion
shapeshifter
summoner/pet class
Swordmage- Magus
Psion- Psychic
Shapeshifter- Shifter (the Legendary Games version)
Summoner- Summoner