It's true that Rodrygo, who has always been sidelined, could potentially leave. I haven't heard any concrete news about his future, but reading Rodrygo's statements, he certainly wants to stay at Real Madrid if he's made a key player and consistently played.
That means he will leave.
He's not included on Xabi's plans, he's just a substitute player who will play for few minutes. Moving to other teams aren't that bad, Rodrygo can still able to shine on other teams because he has a quality.
If he not leave now, he will just wasting his time on Real Madrid.