Yeah, so... basically we know nothing more about the picks except that they're currently locked for this wave. No reason to start seriously worrying or celebrating either way.
I see two reasons to worry, one fairly concrete and one fairly speculative. The concrete cause for concern once again is that Matt Bozon made exactly the sort of tweets at a time when you would expect him to stay silent were Shantae planned or even just being considered for first wave DLC.
My second cause for concern is highly speculative, which is that based on Sakurai's tweets and his urging caution about buying the Fighter's Pass, I am concerned that Nintendo picked characters that cater to corporate interests rather than fan desires, to the point where Sakurai himself is dissatisfied about it. While I have listed grounds for having this concern, it is still very much speculative, and it is very much reasonable to explain all my supporting evidence for it in other ways.
I only have two questions for you at this point: do you want to increase Shantae's chances? And if so, how does stating the things that lower them without anything to counterbalance contribute to that?
I am sympathetic to your attitude, since I spent way too much time arguing doggedly against Shantae naysayers and pessimists during and even after the Smash Ballot. In the context of a Smash Ballot, it really does help Shantae's chances to argue that they are good, since it makes people more likely to vote for her. Even outside that context, making reasonable arguments for optimism about Shantae in general forums and whatnot helps keep people thinking about her and taking her seriously, which could potentially have some impact down the road.
However, it's important to be able to have calm and unbiased discussions about Shantae's prospects in this thread. That itself is a meaningful contribution. For that to be possible, we can't treat informed doubt by earnest Shantae supporters as harmful to the cause. As it happens, we know that right now nothing can help or hurt Shantae's cause for first wave DLC because it's already set in stone anyway. I don't want people here to get discouraged and give up either, but I don't think
Teeb147
offering their interpretation of Sakurai's tweets is causing that, even if they are (like me) not so optimistic about what those tweets mean for the likelihood of Shantae arriving in this next round of DLC.