Mount Targon LoL Event - New Hero and Taric Rework

We have a new champion and a Taric rework , Riot Meddler said it at LoL forum.
Quote :
"Taric's almost certainly going to be the next full relaunch released. Exact timing's not completely certain yet, odds are good he'll be after the next new champion (after Jhin), but before the new champion after that". 

Here you can see where he write it :

http://boards.na.leagueoflegends.com/en/c/gameplay-balance/WGak23AO-whens-taric-rework-coming-out