Even as deep as he’s gotten, Tom certainly doesn’t entirely understand what’s he’s into, and Jon Bokenkamp’s comments to EW indicate that he’ll run into trouble before he even gets to Liz.
His connection with Liz has made it likely that he’ll struggle on a personal level on whether or not to share the contents with her.
Now, it seems that might not be an issue at all if somebody stops him from delivering it.
Tom, fresh off the end of Blacklist Redemption, is the person currently in custody of the suitcase, but he may not be the one to deliver it to Liz.