I hope they renew for a 4th season - would love to see the show progress to its conclusion.
Whilst I have my criticisms of the show and some of the direction it has taken I think S3 was the strongest season so far.
They just need to pull things back on track a little more, respect the source material and nod to it where they can. I feel like they could do with a small committee of readers they bounce things off.
So overall, I wish the show well, but I do wish they would focus more on Wheel of Time how it was meant to be, not how the showrunner intends it to be - but again, my opinion and ymmv.