Accrescent has been quiet for a while, but had claimed in the past they would open the store up for new submissions again soon, it will perhaps happen by the end of the year. Its self-imposed requirements for this are to provide a better developer experience and more common app store features developers (should) expect. They recently announced they will be posting more about the progress made towards such goal, after the big announcements and releases of some months ago.
I'm more worried about the lack of a police to take apps down when it is very clear they should not be there. This is a present problem, presently solvable and that is not acknowledged despite the fact it harms the user.
Note that nobody (new) can submit to it today; the developer console HTTP 503s and is only available to an allow-list of developers.