Board Thread:Young Justice News/@comment-47881-20190721085257/@comment-1038387-20191014181643

That's a very creative way of reading that. It's still open. But only because people can't let go of the idea, not because he wants to keep options open.

And as for years ago... at the time Wally "ceased", he did not like the Speed Force. He had no plans of using it. So there's no reason to assume he retroactively did, with no indication other than "he hasn't said anything about it in years".