Given the wording of the post, I think that they just announced the types of the starters' first forms, not the final forms. Considering we still have nine months until it launches, I'd think they'd hold as much info back so as to tease us more effectively the closer we get to launch. Especially because it's going to be a simultaneous worldwide launch and there won't be spoilers from any time delay.
But that is how I read it anyways. As always, time will be the best indicator of how everything will pan out; though speculation can be a great way to pass the time