His motion mainly argues that two former FTX employees who didn't testify (Daniel Chapsky and Ryan Salame) would have undercut prosecutors' narrative, but were threatened out of testifying. He also claims Nishad Singh was coerced by prosecutors into changing his testimony.
It also repeats his longstanding argument that the funds were never missing and that FTX was never insolvent. (Judge Kaplan got a bit sick of this argument during trial, pointing out that repayment doesn't negate fraud).
And finally he demands Judge Kaplan recuse himself, arguing he showed "extreme prejudice". Both that argument and his "no actual loss" theory are already being litigated in his pending appeal before the Second Circuit, which I wrote about here: https://www.citationneeded.news/issue-96/#sbf