No, but I also wouldn't have done the trade before all this nonsense either, because of how high of a % of his team's offense he is DJ has a higher floor than pretty much any other RB out there, he had 20 of the 46 TDs scored by the Cardinals last year with horrible QB play and a banged up OL, in contrast Zeke had 16 of the 48 TDs scored by the Cowboys with a QB who had the best rookie season any QB has ever had and the best OL in the NFL
Format shouldn't make a difference either way since last year DJ was better than in both PPR and standard, he's just too good of a receiver not to be (was the #1 ranked receiver by PFF last year) since total yards count for both formats and he'll never get scripted out of a game
If you're desperate for youth then make the play for Zeke since theres a 3 year age gap but I know personally I don't focus on more than a few years in the future for dynasty since so much can change with injuries and drafts and whatnot, especially at a volatile position like RB, but I just see very few situations in which Zeke will ever outscore DJ in nonPPR or PPR assuming they both play 16 games