I find that hard tbh.
Shiryu isn't shown as this unbeatable top tier, there are many Top Tiers who can beat him.
Garp calling him a "small town Impel Down hoodlum" already established that, for me atleast.
So i doubt that his powers would require a very specific, new ability to overcome.
It will be more like Zoro unlocking an ability which is shared among other Top Tiers too, kinda like how Fs is shared among few top tiers.
However, Fs is more precognition, while against Shiryu, Zoro might get something related to perception.