First: was the stasis tube with Varian evacuated from the Matoran Universe?Second: did Norik ever learn about Varian's fate? Maybe already on Spherus Magna he'd overhear a Dark Hunter speaking of The Shadowed One's "Toa Prize he kept in stasis"? Would he try to rescue her at some point?
1) Assuming it was still intact, yes, it would have been salvaged.2) Unknown. Story is basically frozen where it stopped, so it wouldn't have happened yet.