Yasuo and Lee Sin will not reach a 100% ban rate with 10 bans
I don't even think their ban rates will increase that much by comparison to more meta picks. There are just better overall picks at the moment than those 2 to justify using bans on them. An increase in Yasuo ban will more likely have to with avoiding the match ups that he is actually really good into rather than because he is "op". Since certain roles are rarely target banned, Lee Sin isn't high enough on the jg pecking order to take priority over other jg champions to ban out.
Do not get your hopes up or expect some kind of miraculous ban rate increase on those 2 when more ban are allowed. If anyone was ever in a pick/ban state like
used to be, that champion would be hot fixed or gutted almost immediately.
beats lee 
eats yas pretty easily.