Reminder why we don't have 10 bans yet, despite promises
We're still planning to look into 10 bans once the new client's out (changes needed to champ select for extra bans would be made in that, not the old client). I think it's quite likely we move to a 10 ban system, though that's not guaranteed yet. Assuming we do go to 10 bans it's also possible Pro games and regular games might make the change at somewhat separated times (different workflows for draft matchmaking games versus tournament draft in custom games which is what Pro uses).
http://boards.na.leagueoflegends.com/en/c/gameplay-balance/99Oykczu-so-about-10-bans?comment=0005
Take special note of this part;
once the new client's out
That means the new client needs to leave Beta and release, completely replacing the old client to where we can no longer use it. If they change the ban system before that they'll have to take resources out of the LCU and put it into the old client that will just get thrown out very soon, just like if they released a skin for a champion that would be remade for a rework in a few months (or years, Yorick).
Keep calm, and just stay up to date on the latest League Client Update news.
wont see a daylight again.