You already didn't keep your word, like you have always done, and fixed your "mistake" giving a new release date for solo queue: "soon".
Now, i'm not here to complain at all, since this is a free to play game and there is no LUA that binds you in any way, but think for a second on what are you doing.. I think you understood, at this point, that flex queue is by all considered a useless-for-boosts-only queue, and people STOPPED playing league because they don't see the reason of wasting their time in a queue that won't be played by anyone anyways. Im not speaking about "amatorial" players, obviously, but about competitive and wanna-be competitive player, who represent the biggest slice of your community. Give us a date, or a range of dates, stop saying "soon", this just upsets people making them feeling flouted.
I still have some love for you in my hearth, dont waste it!