Calvin Johnson said his physical condition is good, describing it as “night and day” to last season when he dealt with knee and finger issues that needed surgical attention after the season. As long as things stay that way, it’s a good guess that Johnson will remain a major part of the Lions offense regardless of where he lines up on the field.
The knee injury appears to be behind him. Even hobbled, Megatron managed to finish as the #3 WR in standard formats after finishing 1st in both 2011 and 2012. The Lions have added weapons in the passing game (i.e. Golden Tate and Eric Ebron), so Johnson shouldn’t see quite as much attention as in recent years.