The melee event is actually one hell of a good idea, especially if you can gather that many pubs. Do you plan on making one specific map for it (or have one already?) because the RGL map might be a bit too small for such large numbers. Either way, really hope Glenn can record his perspective, I want to see how it looks.
I also hope that we won't have like actual NW veterans hiding behind pubs tags just to play against the LG/42nd. Don't want to sound paranoid but the idea is to have an actually trained melee regiment fighting a team made of people who will have nothing but numbers to the advantage right? So if a third of the so-called 'casual' players are in-fact good and experienced players in disguise, it may ruin the spirit of the event. Worth keeping that in mind.
As for the 4v4 league, do you think having like two matches a week would help to have a high quantity of matches in a reasonable period of time or was there something else you had in mind?