The striker thing is a complete fiction though, if it happens then its gonna take time. He would come as LW and probably not even be a starter over Cazorla this season. That would allow Wenger to use Podolski as ST backup aswell. All well and good.
Also, Ox AND Gnabry will both be fine. Ox is gonna spend next year or two rotating between spots at LW/CAM/RW (mainly) or even at CM if needed and Gnabry is 18 years old with no claims to regular game time at all for the next 2 years. Getting Draxler in would allow us to start phasing out Cazorla and Podolski once the time comes for them to go. Meanwhile Ox and Gnabry get ready to step in.
Great teams are full of high profile bench players. Draxler can easily come in now and spend his first 6 months adapting to the team and league while offering a quality option off the bench despite his £37m price.