No it isn't the "Assassin Meta", the only good assassin left is Zed and he is already getting nerfed. We are back in your beloved Tank meta, and if you want to nerf Ekko maybe you should take a look at tank itemization and grasp.
https://www.reddit.com/r/leagueoflegends/comments/4d9rxu/tsm_valkrin_on_current_tank_meta/
Ha. No. Zed is not the only "good assassin," in fact he's one of the worst broken things in the game. I'd say Nidalee or Akali (non tank) are part of the "only good" assassins left.
It's the tanky ADC meta. Tanks aren't running rampant everywhere.
I can't go 
anywhere but top (although I occasionally go darius mid in certain favorable matchups like against yasuo since I like the D man), but I can go some dumb motherfucker like 
jungle, bot, or top. I can go 
bot or mid (although mid is undoubtedly the more common choice). I can go vayne top (against AP top laners = Maw; against AD top laners = steraks) and still be kind of cancerous if my jungle and support are durable.
Tank Meta T.T Rip assassins
zed and lb will continue to be cancer despite the meta
why are you talking about assassins while talking about 
who is a bruiser/tank ?
