Even though a lot of people had problems with crystals and ectoplasm in 3.5e, it did at least have it's own unique flavour for the Psion.
So I think there should be a spell where a Psion throws a crystal around, and it can even be an exploding crystal and do Force or Piercing damage.
For...
For cantrips I wouldn't mind if they got Primal Savagery a Druid cantrip that seems to be something at least a Metamorph should get.
I don't think any blade cantrips fits the Psion spell list, though it might be suitable for some subclass.
I would have thought Elementalism would be more...
I think red with comments allows them to filter out the non-constructive criticisms, as I feel this time they have certain things in mind they aren't changing course on.
There's precedence for Greys as a PC species, they did have D&D PC stats for the Fraal in 2e in something like a Dragon Magazine article to coincide with the release of Alternity. So the Fraal could be written as a PC species in 5e.
Other species from Alternity could be brought over too.
The idea of Psionic disciplines from previous editions of D&D came from the idea of Siddhis and what Yogis were said to be capable of:
Aṇimā: the ability to reduce one's body to the size of an atom.
Mahimā: the ability to expand one's body to an infinitely large size.
Laghimā: the ability to...
On to the subject of Blue as just Goblins who happen to have Psionic powers, any ideas on why there would be a side effect on Goblins having their skin turn blue?
Would this have something to do with their Fey origins?
Does this condition affect Hobgoblins and Bugbears, or is it like Nilbogism...
Anyways here's some of the existing Psionic species from before that I can remember:
Githyanki: featured in Mordenkainen's Tome of Foes
Githzerai: featured in Mordenkainen's Tome of Foes
Elan: from 3.5e and a Paragon Path or something in 4e, Humanoids that became Aberrations and replaced their...
And for PHB spells that could be Psion spells I think they should have Yolande's Regal Presence and Thunderclap (as Stomp was a Psionic power), even though the Thunderclap is not a cantrip I'd recommend for anyone but a Valor Bard or Eldritch Knight.
There's a few spells from Xanathar's Guide to Everything that I feel they should have brought over beyond Psychic Scream. They definitely should have brought over Mental Prison, and probably Scatter, Skill Empowerment, Primal Savagery and Far Step.
Also thinking back to other Psionic classes, what about the Wilder? It was sort of the Psionic Sorcerer back in 3.5e, but the Sorcerer in general tends to do some of the things the Wilder does, but the Aberrant Mind Sorcerer is not exactly the same thing as a Wilder. Could Wilder be a subclass...
It was probably more of a necessity back in 2e when no other class got access to the type of healing (well mainly Raise Dead and Resurrection) Clerics got.