We talked about being able to choose abilities, but her upgrades don't have the same kind of impact as Kai'sa or Kah'zix's upgrades do. Even if we let players choose what upgrades it wouldn't be much of a choice, there would be a correct answer as these are not playstyle or utility type upgrades, but tend to focus on damage. This also lets us control the pacing so you can't won't just always pick the strongest ones, but instead have to adapt to it.
As for her AP builds, I haven't seen the data but I don't believe this should have much of an impact on what build she can go. Nothing was changed except for her passive so before you had the roll the dice on what upgrades you could get, you know know what/when they are. If you were going AP before then it is totally possible that you didn't get the dragons that you were hoping for, now they might not be right up front but you know you can get them.
We wanted to do something a bit more exciting for her ultimate's enhancement, but ran out of time for the scope that we had, the HP you get doesn't have the same impact as we would like for her final enhancement.