Tenille Dashwood confirmed on Twitter that she is indeed a free agent. Her Impact Wrestling contract recently expired, which means that she could pop up anywhere in the coming days or weeks.
Dashwood's tweet simply includes a screenshot showing what the definition of "free agent" is and she included the "Eyes" emoji. Under her tweet (see below), her boyfriend/current WWE star Madcap Moss added three "Eyes" emojis.
Again, we don't know if she will be signing with WWE but it would only make sense for WWE or AEW to offer her a deal. It seems that the door would be open with both companies since they are looking to add more good in-ring rosters to their roster. WWE's door was likely closed until Vince McMahon stepped down but things have changed a lot in recent weeks.
Dashwood is a former Impact Knockouts World Tag Team Champion. Many credit her matches with Paige for being a major catalyst for the WWE "Women's Revolution" that led to women getting more quality match time.