Nope it will only cause conflict... He still has royal blood.. even if his mother and family are gone... Some malicious person may use him as a tool for power..
I rather he live a free life in another country with his uncle as a commoner/low noble than be confined to the palace and the world of messed up politics and power struggles. In the end it’s the best ending for him, a quiet life after everything.
I feel sad for Edmund. I wish he had stayed in the palace. I'm pretty sure the crown prince will forgive him and accept him again as family.