Hard to imagine.

They've built their D roster around 3-4 D. Losing 1 DT, even AD, doesn't alter that philosophy. Besides, they'd have to significantly alter everything from DL, to LBs, to Safeties, which means bringing in different players.

Sean McVay clearly believes in the 3-4, and Snead does too, and that's the players they have.

Bottom line: can't see them changing.