The Cards rarely give us a yes/no answer...
Judgement is often about letting go of something that is holding you back--either something you're fond of or that it's just hard to get out of; and given that you're waiting to hear back from someone, I'd take that knight as the message coming your way.
As for this being a "yes" answer to your question about moving on: Tarot cards rarely give us simple "yes/no" answers to anything. Flip a coin if you want an absolute yes or no answer to a question. With Tarot you typically get "Under these circumstances, it would probably be better to move on, but under these circumstances, it would probably be better to stay." Remember that the cards are not your parents, and you're not a child--it isn't their job to tell you what to do. The cards are a friend and an advisor, and you're an adult. Which means that their job is to make sure you see the big picture, have all the pieces and important information, and so can make the best decision.
So, I think the advice you're getting here is that you should release yourself from whatever is holding you back, no matter what. Whether you move on after that, or decide to remain and re-negotiate things (now that you are making a "free" choice to stay instead of feeling like you have to stay)...that you should decide after you get that message. I think the advice is that what that someone says to you will make a difference. So, you shouldn't move on until you hear back from them.
That I think is what the cards are advising you.