OmegaXXII
Fire Emblem Lord/ Trophy Hunter
Yes, but I think 3rd party developers or modders will figure something out, that's if Nintendondoeant do anything about it.I doubt Nintendo will think of something like that. They are basing their systems for home or personal use. It's not design for large scale tournaments. In Smash they could improve the online and have more online tournaments. Then your records can be recorded on your 3DS which you can take to smaller live tournaments.
Like you say, if the online were to be good I'd say there's a good chance that an online tournament community would grow and present itself, like leaderboards and score tracker for example could decide who would win tourneys and whatnot, I'm hoping Sora thinks more expansively when it does come to online.