Summary of some of the relevant points for the Rift mystery from Drew's AMA so far (
full link here), my editorial comments in [ ]:
The mythology of Salome and the Seven Veils is relevant;
The "missing" green or Emerald stellar body from Prism system is not relevant;
There are hints in both Galnet and a few in local news, which may or may not be in some form of cipher, and the primary clues will be coming in future in Galnet;
Any astronomical hints or clues would be able to be figured out in game. They do not require Stellarium or the like (although you might find them that way as well);
Altera underpins the clues we already have [so likely does not introduce new clues];
That said, Tionisla is an "odd place" that we should keep an eye on;
It is not necessary to find Hassan's world [and does not appear to be necessary to find Octavia's system, if it is even in game] to solve the Rift mystery;
What is in or beyond the Rift is not a POI, but part of a continuing story. We may not even recognize it when we find it, although it is "becoming clearer each day";
The Dark Wheel has an [unspecified] role to play in the mystery;
A single commander could find the "answer", but it is more likely to be found by a group working together;
Nothing in Elite Reclamation is insignificant - there are many layers there;
The meaning of "core of the problem" can be found by sifting through existing Galnet and watching future Galnet;
Both the Formidine Rift and the Thargoids have their origins far back in the history of Elite, and we should "keep watching" for possible connections;
Those exploring the Rift from now on should do so well-armed, and make use of Engineers to maintain FSD range;
The duplicate Kahina Galnets of 09 MAR 3301 and 06 MAR 3301 – ("Prism Senator will not be late, not even slightly") were an error, there should only have been one published;
The Galnet posts generally "are a tapestry as seen from the back" - the threads may appear disordered, but they are not.