I think it's interesting that this season we have seen many champions go into different lanes in LCS. What are some champions that you consider to be able to do this? EX. kennen, Nautilus, lulu. have all been played in a few different lanes.
Just an interesting conversation to me, hopefully it's interesting to you as well!
Every champion can go any lane/role. It is allowed by Riot.
kayle used to be viable anywhere but idk after nerfs.
As of right now, as I've played it, 
is able to lane in every lane.
Top Lane is good. Building her as a Bruiser champ and having tri-force and wits end ensures good damage. Sheen proccing is Key during laning.
Jungle is good as well. Runeglaive proc resetting is key. Build her standard after Runeglaive i.e. Luden's etc. Make sure to start at red/blue to avoid counter jungling. Expect invades. Max Q and E first and R when its available.
Mid is a safe pick. Standard AP.
Support is pretty meh but doable. Have your spellthief's ready and rank up Charm first for maximum effect.
Adc is oddly good. She has responsive auto attacks and has the ability to re-position. Max Charm first to get the most out of your auto attacks. Build Standard ADC.
Karthus 
be a good example of someone who can go annywhere
top often build ad i think ( never played her there ) ap jg ap mid ap poke sup ( also has heals ) shit tier adc with her heal/atk speed steroids
the thing is anny champ can do good in anny lane ( except for maybe the jungle and bard ) :P how good they do ( if user and enemy r equaly skilled ) depends allot on the matchup
lets say your playing ad leblanc top lane vs quin top lane quin is gonne rape you ez
but now lets say it be jax top lane you got 3 snares wich is a vvery long time and alllot of mobility jax cant even get to you ad leblanc might actually be viable against that :P
i think Nasus can do multi lane thing but people dont seem to realise that you cant expect a support nasus to do the same damage as a top lane nasus mid game. i would take nasus support some times but its mostly for the attack speed and movemnt speed slow that is so powerful and the armor shread on his e and that he can still farm q with a relic sheild line of items and when adc backs to buy items
