I think he'll play 100% and he'll probably do fine given the opposition.
But going forward we need to get iwobi into a central area. Even when playing wide, he naturally drifts inside anyway. We have too many players wanting to play in the same pockets.
I don't think we 'need' to because I don't think we should have a rigid system.
Given our current rigid system is working at home but not away, I think it's perfectly reasonable to keep it at home and then - like you say - try Iwobi central (in a three as a box-to-box player could work) away from home. In fact, Iwobi's pace in the centre away would be a real positive.
But at home we do tend to get Gylfi more involved and - like we saw against Wolves - that works well.
If we were playing a team we knew would set up in a 4 at the back I'd be more inclined to agree. But given, going forward, it worked well v a 3 at the back against Wolves, I wouldn't mind us sticking with that side (I have a feeling DCL will start but I'd prefer him to be given a role in a proper three as a target man v Sheff Weds).