That's a tough one. If they use the short-term IR designation on him, he can't play until week 8. Plus they can only use it on 1 player and to qualify for it they have to put him on the initial 53 man roster after final cuts which means they have to cut some other healthy player they like and hope they can get him back again after Wilson's spot opens up again.
Considering how unproven he is and that he's at best the 5th in the receiving pecking order, I'm just not sure it's worth it to use their only short-term IR designation on him. It's certainly also very questionable that it's worth holding a spot on the 53 man roster for him while you wait for him to get healthy.
So I'm thinking there's a pretty fair chance that he's headed for the standard IR list and we won't see him until next year. That's disappointing obviously, but may be in the long term best interests of all involved.