Star Wars: The Living Force by John Jackson Miller drops next Tuesday, a story about the Jedi Council set one year before the events of TPM, and I know you're all clamoring, desperately asking the same question I am - will that guy they mentioned once in AotC who only exists because of a typo be in it?!?!
It's just. That one year?? That's like the craziest year of Sifo-Dyas's life. His visions reach some critical mass to the point that he goes off to the Council about needing an army, gets subsequently kicked off (resigns?) from the Council, uses the horrible comlink to contact Dooku again after what, 20 years, successfully gets the Clone Project going, despite the fact that he's also apparently still running missions and is on the supreme chancellor's speeddial, and then still has enough free time leftover to get murdered.
It seems like he could come up, especially if the plot is "Council Drama."
On the other hand, the Master and Apprentice is about seers and prophecy and Dooku-adjacent, and Qui-Gon is literally waffling over the Council seat Sifo-Dyas ends up taking, and the man doesn't come up once.
I also think if we see more Sifo-Dyas content, it'll be from Cavan Scott, since he wrote him as such a huge character in Dooku: Jedi Lost and then went out of his way to include all the Sifo-Dyas drama in the Yoda comics as a fairly significant plot point for Dooku.