Cutting Woods would cause many millions in dead cap space. Besides, why would you do that? Robert Woods is better than OBJ overall. For one thing, OBJ is about as a good a blocker as I am. Woods is a really good blocker. Blocking by WRs is a big deal in the McVay offense. OBJ might be a tad faster, or maybe a tad more physical... but I'm not sure of that.
Anyway, everything is premature until it happens. But it is not imaginable to me that OBJ stays unless something goes really really wrong with Woods rehab.