In regards to Enigma and Solus, both characters who flank Minfilia in the
Shadowbringers artwork, rewatching some cutscenes I realized something that could be interesting.
Look at their gear. They share the same color scheme. Not just that, but also the white gems in their attires, mainly Enigma's staff and chest and Solus' coat ornaments.
I know enough to realize outfit choices are rarely random. This similarity probably means something. We do know Solus is an Ascian, so what could exactly relate him to Enigma?
I am convinced that Enigma has some connection to Zodiark. His call was tinged with Darkness and he is probably who will make us Warriors of Darkness. He might be even Zodiark himself, or his chosen vessel like Minfilia is Hydaelyn's.
Now, it has been pondered if Emet-Selch, the Ascian that most likely is Solus, might be actually two related entities, since Emet-Selch is the counterpart of Zalera, the esper associated with the Zodiac sign of Gemini. Could Enigma be an opposed part of Emet-Selch's being, trapped within the Crystal Tower? Or this similarity might underline something different? What are your thoughts?