The product of Laine/Aho part was a WJC statement only though. IIRC, he was viewed as a top pick (top 3? 5?) even before the WJC and my understanding is that he didn't really play that much with Aho in Karpat (our Finland friends will have to comment on that).
I've watched Jesse a few times in EDM. There are moments where his speed and size is just unreal and he looks dominant. There is also a lot of time where he just looks lost out there. I have read some on the Oiler's board (specifically about him, not the board in general) and there are comments where people are concerned a bit about hockey sense, that he hasn't learned English, etc..but more about how the Oiler's are screwing up with him in how they are using him / jerking him around. Frankly, sounds a lot like some of the complaints in the past with Pitkanen when he was in Edm.
I'd do that trade in a heartbeat, but the Oiler's wouldn't (barring another brain fart by Chia). I think in the right environment, with a couple other Finns on the team and a huge hole in the line-up for a guy of his size, speed and ability, he'd be phenomenal here. His size, speed and shot are remarkable, but he' will take some time to reach full potential. I understand your point about Fleury and he is just starting to make his way, but with Slavin, Hanifin (and Bean), he's the most expendable. Sign someone like Kane or JVR in the offseason as well.
JVR/Kane/Neal-Staal-Williams
TT-Aho-Puljujarvi
Skinner-Necas-Lindholm (or if Aho struggles at C, move Lindy there)
McGinn-Wallmark-Foegele
Zykov
Slavin-Pesce
Hanifin-Faulk
Bean/Dhalbeck-TVR
Dhalbeck/Bean
Still need to solve the goalie issue, but that would be the most potent line-up the Canes have had upfront since shortly around the cup timeframe.