Trevon Diggs landing in Seattle on a one-year deal is a minor but real fantasy note for IDP and DB-relevant formats, and it matters more for roster construction than raw stat projection. He's changing schemes and secondaries midstream, so there's real uncertainty about his role, target share against him, and how quickly he integrates into Seattle's coverage scheme. For draft prep, treat Diggs as a depth/speculative add in IDP leagues rather than a core building block — the move itself signals Seattle values him as a starting-caliber corner, which is a mild positive signal for playing time, but new-team transitions historically come with an adjustment period that can suppress big-play upside (like interceptions) early in the season.

The more notable name here is Terrion Arnold, whose signing with Seattle has reportedly been put on hold specifically because of pending felony charges. This is the real red flag in the cluster. Until there's clarity on the legal situation, Arnold is not draftable with any confidence — he has no confirmed team, no confirmed role, and a legal cloud that could affect his availability for all or part of the season. Drop him to the bottom of your IDP/DB rankings or leave him unrostered in drafts; revisit only if news breaks that the charges are resolved or a team signs him outright.

Bottom line: Diggs is a low-confidence speculative add given his fresh start in a new defense, worth monitoring but not prioritizing early in draft prep. Arnold is a hard avoid until the legal situation clarifies — don't spend a roster spot or draft capital on him now.