I don't think it will go down. He has been PPR gold so far and I don't see that changing much. He isn't in the game to pound the ball it's Brees getting him quick passes. That shouldn't change no matter what happens with Ingram going forward.
I would do this trade.
QB- Roethlisberger, Rivers, Foles
RB- McCoy, Lynch, L James, Ivory, F Jackson, D Thomas, Turbin
WR- Julio, Bowe, D Bryant, D Jax, Amendola, Broyles, Gordon, Hill
TE- Celek, D Allen
D- D Washington, S Weatherspoon, L Kuechly