@RIOT: What do you want Sona's role in lane phase to be?

So, it seems that the Sona nerfs on the PBE are going to be going through. In light of this, I really want to honestly ask Riot, what do you want Sona to be in the lane phase?

The reason I ask this is because they are quite harshly nerfing the one thing Sona really is good at in lane: her poke. Now, yes, her poke is still quite strong after a few nerfs, but these latest nerfs feel like a bit much at once. Upping the mana cost on her primary and most-used laning tool to 60 at rank 1 is pretty killer on a champion that already guzzles mana like Gragas downs his ale. Not only this, but the aura bonus damage was halved across the board, making each of those more expensive pokes weaker. The nerf to her base AD certainly didn't help, nor did the nerf to her Armor, leaving trading for an auto less and less enticing on the already-squishiest champ in League.

So, if Sona isn't supposed to bully her lane opponents out, then what is her role to be? She can't stand back and be a support like Janna or Soraka. She has zero peel pre-6 besides a single target slow on an auto attack, and her W is laughable both as a heal and as a shield, moreso as a heal, and is ridiculously mana-hungry and -inefficient. Not to mention that she lost base values on both the heal and the shield last patch.

And maxing her E first is a joke, and it doesn't do a whole lot until later in the game.

So, what does Riot want Sona to do in lane? Do they want her to be a poke mage? Or do they want her to sit back and let her ADC do most of the work fending off the enemies? If Sona isn't supposed to poke out the enemy laners anymore, I.suppose that's fine, but in her current state that's really all she can do.

I'm just very, very concerned that both the mana and aura nerfs to the Q together might hurt Sona really hard, and more than anything, I just don't want to be flamed by every adc I support for standing back and being useless because my spells are too weak and expensive.

I don't want Sona to be overpowered. I hate it when she is, honestly, because I just want to have fun playing my champion. But I just want to remain a serviceable support in lane. Perhaps only nerfing the damage and not the mana cost would be an alright idea?

Sincerely, a worried Sona main