I think he's tremendously hot and cold. Yeah, he's looked good in some games this season (is he just putting in a little extra effort now because of his contract?) but he's been pretty absent in others too. His time on loan was frankly dreadful, I don't think he did anything of note almost his entire time there and they seemingly got to a point they were better off without him in the side. Plus it's hard to completely ignore the ridiculously bad injury record even if it has been better since his loan spell.
I don't think he's what we need at the end of the day. Jack Wilshere, Jamie Vardy, Phil Jones, it's all the same limited thinking for me. It's not going to take us where we want to be.