Making the opening speech in game more interesting since we know what lane everyone is going in
Like, instead of just saying "Welcome to summoners rift" it should be because everyone is picked a roll before hand, the voice would say
"Welcome to summoners rift, irelia vs olaf, azir vs ahri, evelyn vs lee sin, ashe and thresh vs ezreal and blitz, minions will spawn in 0:00
And no, it would not take too long to finish, you already have a 16-17 second wait time to be able to move out of the base, and then 5-7 seconds to get to lane or any bush that you are going to, the summoner speech would be done or if not 95% done by that time.