Not sure is there any post about this, was trying to find it but... or is this right place to post it.
AWSD keys for map scrolling and 1234 for ability's?
Will that be possible?

In the future, hopefully, we'll be able to map our own keys"

For now, 1~6 are item slots, for using consumables.

yea that's nice but i just hate to scroll a map with a mouse and i don't have a third hand :P

you can change your hotkeys in the game files -> C:\Riot Games\League of Legends\game\DATA\CFG\defaults -> input.ini

search for [Game Events]

there you can change your keys

it looks like this (defaults)

evtScrollUp = [Up Arrow]
evtScrollDown = [Down Arrow]
evtScrollLeft = [Left Arrow]
evtScrollRight = [Right Arrow]

evtCastSpell4 = [r]
evtCastSpell3 = [e]
evtCastSpell2 = [w]
evtCastSpell1 = [q]
evtCastAvatarSpell1 = [a]
evtCastAvatarSpell2 = [s]