Donovan and Killorn could likely play in the NHL if the season resumed tomorrow. I really like Killorn and think he could become an above average 2nd line player one day...he'll do his time on the 3rd line though. Both are by far the most NHL ready of the players you listed. Joe Colborne is probably the best example to use as a time frame reference on how long it'll take Jankowski to make the NHL. Colborne still isn't ready, by the way...
Koekkoek is probably a good 4-5 years away from making the Lightning. Hard to get a good read on Stransky because he plays for arguably the worst team in the WHL.
Stamkos was asked today in Tampa how he can top last season:
"Well, get into the playoffs. That's the big key and that's our goal here."
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