Ok this has been driving me crazy for a long time now. A ton of people think Varys/Illyrio's plan was for Dany and Viserys to cross the Narrow Sea with a Dothraki horde, cause chaos, then Aegon swoops in with the GC to save the day and become a "savior king". It's been repeated many times and a ton of people treat it as canon.
Except that "plan" is nowhere in the text! It's not even hinted at. It's a complete forum creation. That was not, is not, and never was the plan.
We have little to no idea what's up with Varys and Illyrio plain and simple.