Decent as Pukki is, Norwich are crying out for a bit of speed, so I think he'd get chances there.
Villa's only real striker, Wesley, snapped his ACL two weeks ago, so Nketiah would certainly have the opportinity to stake a claim there.
The only other striker they currently have is an 18 year old American kid, and he didn't look anything special when he came on against Leicester on Wednesday night. I was watching said game wondering why Villa, and the other teams down the bottom of the PL, weren't trying to snap up Nketiah.